Fungicidal mixtures

Information

  • Patent Grant
  • 6521628
  • Patent Number
    6,521,628
  • Date Filed
    Thursday, January 27, 2000
    24 years ago
  • Date Issued
    Tuesday, February 18, 2003
    21 years ago
Abstract
The invention relates to a novel fungicidal composition comprising a fungicidally acceptable carrier and/or surface active agent together with, and synergistically effective amounts of(a) at least one benzophenone of formula I wherein R1, R2, R3, R4, R5, R6, R7, m and n have the meaning given; at least one fungicidal active ingredient selected from the following groups(A), (B), (C), (D) and (E):(A) an ergosterol biosynthesis inhibitor;(B) a strobilurine derivative,(C) a melanin biosynthesis inhibitor;(D) a compound selected from the group consisting of acibenzolar, benomyl, captan, carboxin, chlorothalonil, copper, cyprodinil, dinocap, dithianon, dimethomorph, dodine, ethirimol, famoxadone, fenpiclonil, fluazinam, mancozeb, metalaxyl, pyrifenox, sulfur, vinclozolin and(E) an azolopyrimidine of formula II in which R8, R9, R10, R11, A, L and p have the meaning given;and to a method of controlling the growth of phytopathogenic fungi at a locus which comprises applying synergistically effective amounts of (a) at least one benzophenones of formula I and (b) at least one fungicidal active ingredient selected from the groups (A), (B), (C), (D) and (E) to the locus.
Description




BACKGROUND OF THE INVENTION




The present invention relates to a fungicidal composition comprising a fungicidally acceptable carrier and/or surface active agent and synergistically effective amounts of




(a) at least one benzophenone of formula I











wherein




R


1


represents a halogen atom, an optionally substituted alkyl, alkanoyloxy or alkoxy group; or a hydroxy group,




R


2


represents a halogen atom or an optionally substituted alkyl group,




m is 0 or an integer of 1 to 3;




R


3


independently represents a halogen atom, an optionally substituted alkyl or alkoxy group or a nitro group;




R


4


represents a halogen atom, a cyano, carboxy, hydroxy or nitro group or an optionally substituted alkyl, alkoxy, alkenyl, alkylthio, alkylsulphinyl, alkylsulphonyl or amino group;




R


5


represents an optionally substituted alkyl group;




R


6


represents a halogen atom or a nitro group, an optionally substituted alkyl, alkoxy, alkenyloxy, alkynyloxy, alkylthio, cycloalkyl, cycloalkyloxy, aryloxy group;




n is 0 or 1; and




R


7


independently represents a halogen atom, an optionally substituted alkyl, alkenyl, alkynyl, alkoxy, alkenyloxy, alkynyloxy, cycloalkyl, cycloalkoxy group;




(b) at least one fungicidally active ingredient selected from the following groups (A), (B), (C), (D) and (E):




(A) an ergosterol biosynthesis inhibitor;




(B) a strobilurine derivative,




(C) a melanin biosynthesis inhibitor,




(D) a compound selected from the group consisting of acibenzolar, benomyl, captan, carboxin, chlorothalonil, copper, cyprodinil, dinocap, dithianon, dimethomorph, dodine, ethirimol, famoxadone, fenpiclonil, fluazinam, mancozeb, metalaxyl, pyrifenox, sulfur and vinclozolin, and




(E) an azolopyrimidine of formula II











in which




R


8


and R


9


each independently represent hydrogen or an optionally substituted alkyl, alkenyl, alkynyl, alkadienyl, aryl, heteroaryl, cycloalkyl, bicycloalkyl or heterocyclyl group, or




R


8


and R


9


together with the interjacent nitrogen atom represent an optionally substituted heterocyclic ring,




R


10


represents hydrogen or an alkyl or aryl group,




R


11


represents a hydrogen or halogen atom or an alkyl or alkoxy group,




L independently represents a halogen atom or an optionally substituted alkyl or alkoxy group,




A represents N or CR


12


, wherein R


12


has the meaning given for R


10


, and




p is 0 or an integer from 1 to 5.




The fungicidal compounds of formula I to be used according to the present invention are known for example from U.S. Pat. No. 5,773,663.




The compounds of the classes (A), (B) and (D) are known from The Pesticide Manual 11


th


edition 1997, Editor Clive Tomlin.




The class of melanin biosynthesis inhibitors (MBI) (C) are chemical compounds which are capable of diminishing the in-vivo synthesis of melanin by inhibiting any of the reductase and/or dehydratase enzymes which are responsible for converting tetrahydroxynaphthalene into dihydroxynaphthalene. This class of compounds includes the following known compounds: carpropamid, chlobenthiazione, diclocymet, pyroquilon, phthalide, tricyclazole and certain phenoxyamides, which are known for example from EP 0 262 393, in particular AC 382042 and Japanese patent application JP 5-9165-A.




The fungicidal compounds of formula II to be used according to the present invention are known for example from U.S. Pat. No. 5,593,996 and from International patent applications WO 98/46607 and WO 98/46608.




U.S. Pat. No. 5,773,663 suggests to combine fungicidal benzophenone derivatives with other fungicides such as 4,6-dinitro-o-cresol, benalaxyl, benomyl, captafol, captan, carbendazim, chlorothalonil, copper, cymoxanil, dichlofluanid, dichlone, difenoconazole, dimethomorph, diniconzole, dinocap, dithianon, fenpiclonil, fenpropiomorph, hymaxazol, imazalil, iprodione, isoprothiolane, kasugamycin, mancozeb, mepronil, mercuric oxide, oxadixyl, oxolinic acid, penconazole, propineb, pyrifenox, thiabendazole, thiram, tolclofos-methyl, triadimefon, triflumizole, triforine validamycin A, vinclozolin, zineb and ziram.




However, there is no hint that such mixtures show synergistic effects and can advantageously be used for controlling diseases such as wheat powdery mildew, wheat leaf rust and wheat Septoria leaf blotch, Botrytis diseases and others.




Surprisingly, a strong synergy between the compounds of formula I and the fungicidally active ingredients selected from the classes (A), (B), (C), (D) and (E) as described above in greenhouse and field trials was found when these two compounds were in-tank mixed and when the activity of these mixtures was compared with that of the solo activity of each active ingredient.




A mixture of fungicides shows synergistic effect if the fungicidal activity of the mixture is larger than the sum of activities of the separately applied compounds. The expected fungicidal activity for a given mixture of two fungicides can also be calculated as follows (See Colby, S. R., “Calculating synergistic and antagonistic response of herbicide combinations”, Weeds 15, pp 20-22 (1967):








EE=x+y−x·y/


100






wherein




x is the efficacy in % compared with an untreated control upon treatment with a fungicidal active ingredient A at a dose rate a;




y is the efficacy in % compared with an untreated control upon treatment with a fungicidal active ingredient B at a dose rate b;




EE is the expected efficacy with a combination of fungicidal active ingredients A and B at a dose of a+b, respectively.




If the actual efficacy (E) exceeds the expected (calculated) one (EE), the mixture displays a synergistic effect.




SUMMARY OF THE INVENTION




(b) The present invention includes a fungicidal composition comprising an acceptable carrier and/or surface active agent and synergistically effective amounts of at least one compound of formula I, and at least one fungicidal active ingredient selected from the following the following groups (A), (B), (C), (D) and (E):




(A) an ergosterol biosynthesis inhibitor;




(B) a strobilurine derivative,




(C) a melanin biosynthesis inhibitor,




(D) a compound selected from the group consisting of acibenzolar (BION), benomyl, captan, carboxin, chlorothalonil, copper, cyprodinil, dinocap, dithianon, dimethomorph, dodine, ethirimol, famoxadone, fenpiclonil, fluazinam, mancozeb, metalaxyl, pyrifenox, sulfur and vinclozolin, and




(E) an azolopyrimidine of formula II.




The present invention also includes a method of controlling the growth of phytopathogenic fungi at a locus which comprises applying synergistically effective amounts of at least one benzophenone of formula I and at least one fungicidally active ingredient selected from the following classes (A), (B), (C), (D) and (E) as defined above to the locus.




DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS




Preferred compounds of formula I are benzophenones of formula IA,











wherein




R


1


represents a halogen atom, a methyl, trifluoromethyl, methoxy or hydroxy group, in particular a chlorine atom, a methyl or methoxy group;




R


2


represents a halogen atom, in particular a chlorine atom or a methyl group;




R


3


represents a bromine or chlorine atom, a methyl, trifluoromethyl or nitro group, in particular a bromine atom;




R


4


represents a methyl group;




R


5


represents an alkyl group, in particular a methyl group;




R


6


and R


7


each independently represent an alkoxy group which may be substituted by a phenyl, alkylphenyl or halophenyl group, preferably C1-6 alkoxy being optionally substituted by a phenyl, methylphenyl or fluorophenyl group, in particular methoxy, benzyloxy and 2-fluorobenzyloxy; and




n is 0 or 1.




Particularly preferred are the benzophenones selected from the group consisting of 6′-butoxy-2,6-dichloro-4′,5′-dimethoxy-2′-methylbenzophenone coded BP-1, 2,6-dichloro-4′,5′-dimethoxy-6′-(2-fluorobenzyloxy)-2′-methylbenzophenone coded BP-2, 6′-benzyloxy-4′,5′-dimethoxy-2,6-dimethyl-2′-methylbenzophenone coded BP-3; 3-bromo-2′,6-dimethyl-2,4′,5′,6′-tetramethoxybenzophenone coded BP4 and 2,6-dichloro-2′-methyl-4′,5′,6′-trimethoxybenzophenone coded BP-5, most preferred is BP-4.




Preferred ergosterol biosynthesis inhibiotors of group (A) are selected from the group consisting of fenarimol, fenpropimorph, fenpropidine, spiroxamine and triforine.




Another group of ergosterol biosynthesis inhibiotors are azole derivatives of formulae IIIA and IIIB,











wherein




E represents a linking group selected from the groups (a), (b), (c), (d) and (e):











in which




X


1


represents an alkyl or an optionally substituted phenyl group;




X


2


and X


3


each independently represent a hydrogen atom or an alkyl group;




X


4


represents an alkyl or cyclopropylalkyl group;




X


5


represents a hydroxy or cyano group;




X


6


represents an optionally substituted phenyl group;




X


7


represents a halogen atom;




q is 1, 2 or 3; and




r is 0 or 2;











wherein X


7


and q have the meaning given for formula IIIA, and E represents a group of formula —N(X


8


)—(CH


2


)


8


—O—, in which X


8


represents a hydrogen atom or an alkyl group and s is an integer from 1 to 6.




Particularly preferred azole derivatives of group (A) are selected from the group consisting of cyproconazole, epoxiconazole, flusilazole, metconazole, myclobutanil, penconazole, prochloraz, propiconazole, tebuconazole, triadimefon and tridimenol. Most preferred are epoxiconazole, metconazole, myclobutanil and prochloraz.




Preferred strobilurine derivatives of group (B) are the compounds of formula IV,











wherein




W represents N or CH;




B represents a —O—, —OCH


2


—, a —CH


2


O—, a pyrimid-4,6-dioxydiyl group or a group of formula











R


12


represents a C


1-4


alkyl group;




R


13


represents a C


1-6


alkoxy or a C


1-6


alkylamino group;




R


14


represents a hydrogen or halogen atom or a cyano, a C


1-4


alkyl or a C


1-4


haloalkyl group; and




s is 0, 1 or 2;




in particular azoxystrobin, kresoxim methyl, trifloxystrobin or SSF126, most preferred azoxystrobin and kresoxim methyl.




Preferred melanin inhibitors of group (C) are selected from the group consisting of capropamid, chlobenthiazone, diclocymet, pyroquilon, phthalide, tricyclazole and a phenoxamide coded AC 382042, most preferred is AC 382042.




Preferred compounds of group (D) are selected from the group consisting of acibenzolar (BION), cyprodinil, dodine, ethirimol, famoxadone, fenpiclonil, fluazinam, mancozeb and metalaxyl.




Preferred azolopyrimidines of group (E) are the compounds of formula IIA,











wherein




R


8


represents a C


1-8


alkyl, C


2-8


alkenyl, C


3-8


cycloalkyl or C


1-8


haloalkyl group, in particular a straight-chained or branched C


3-6


alkyl, C


2-6


alkenyl, C


5-8


cycloalkyl or C


2-6


fluoroalkyl group, most preferred an isopropyl, 2-butyl, cyclopentyl, methallyl, 2,2,2-trifluoroethyl or 1,1,1-trifluoroprop-2-yl group; and




R


9


represents a hydrogen atom, or a C


1-8


alkyl group; most preferred a hydrogen atom or a methyl or ethyl group; or




R


8


and R


9


together form an optionally substituted alkylene group having 3 to 6 carbon atoms in the main chain, in which one CH


2


group may be replaced by O, S or NH, in particular a piperid-1-yl group being optionally substituted by a C


1-6


alkyl group, most preferred a 4-methylpiperid-1-yl group;




L


1


, L


2


and L


3


each independently represent a hydrogen or halogen atom or a C


1-4


alkoxy group, at least one of which represents a halogen atom, in particular wherein L


1


represents a fluorine atom, L


2


represents a hydrogen or fluorine atom or a methoxy group and L


3


represents a fluorine or chlorine atom; and




Hal denotes a halogen atom, in particular a chlorine atom. Particularly preferred are the azolopyrimidines of formula II selected from the group consisting of 5-chloro-6-(2-chloro-6-fluorophenyl)-7-(cyclopropylamino)-[1,2,4]triazolo[1,5-a]pyrimidine coded AP-1, 5-chloro-6-(2-chloro-6-fluorophenyl)-7-(4-methylpiperid-1-yl)-[1,2,4]triazolo[1,5-a]pyrimidine coded AP-2, 5-chloro-6-(2-chloro-6-fluorophenyl)-7-(2,2,2-trifluoroethylamino)-[1,2,4]triazolo[1,5-a]pyrimidine coded AP-3 and 5-chloro-6-(2,4,6-trifluorophenyl)-7-[2-(1,1,1-trifluoro)propylamino]-[1,2,4]triazolo[1,5-a]pyrimidine coded AP4, most preferred is AP4.




A particularly preferred embodiment of this invention are compositions of three active ingredients which comprise one compound of formula I and two different compounds selected from the groups (A), (B), (C), (D) and (E), preferably one strobilurine compound selected from group (B) and one ergosterol biosynthesis inhibitor of group (A), in particular kresoxim-methyl and epoxiconazole or kresoxim-methyl and fenpropimorph.




Another particularly preferred embodiment of the invention are compositions comprising one compound of formula I and two different compounds of group (D), in particular dimethomorph and mancozeb.




Preferred are co-formulations, comprising the following constituents:




a carrier;




at least one benzophenone of formula I,




at least one compound selected from the classes (A) through (E) as defined above;




optionally an adjuvant selected from the group consisting of polyalkoxylated alcohols, triglycerides and amines, in particular Synperonic 91-6, which is commercially available from Uniqema, formerly ICI Surfactants;




optionally a foam breaking agent.




The compound of formula I and the compound selected from the classes (A) through (E) as defined above are to be applied together, in synergistically effective amounts. These synergistic mixtures exhibit an extraordinary efficacy against a broad range of phytopathogenic fungi, in particular against fungi from the classes ascomycetes, basidiomycetes, oomycetes and deuteromycetes. Therefore, they can be applied advantageously against a broad range of diseases in different crops. They may be applied as leaf, stem, root, into-water, seed dressing, nursery box or soil fungicides.




The mixture according to the invention may be preferably applied for controlling phytopathogenic fungi of the genera: Achlya, Altemaria, Balansia, Bipolaris, Blumeria, Botrytis, Cercospora, Cochliobolus, Curvularia, Cylindrocladium, Drechslera, Entyloma, Erysiphe, Fusarium, Gaeumannomyces, Gerlachia, Gibberella, Guignardia, Leptosphaeria, Magnaporthe, Mucor, Mycosphaerella, Myrothecium, Nigrospora, Peronospora, Phoma, Pseudoperonospora, Pseudocercosporella, Phytophthora, Puccinia, Pyrenophora, Pyricularia, Pythium, Rhizoctonia, Rhizopus, Rhynchosporium, Sarocladium, Sclerophthora, Sclerotium, Septoria, Tilletia, Uncinula, Ustilago, Ustilaginoidea, and Venturia, in particular the species


Blumeria graminis


f. sp.


tritici, Cercospora beticola, Septoria tritici, Erysiphe cichoracearum, Puccinia recondita


and


Pyrenophora teres.






The mixtures according to the invention are in particular applied for controlling the above phytopathogenic fungi on monocotylydoneous plants, such as barley and wheat, rice and turf grases or fruit crops such as pomefruits, stonefruits and vines as well as all kinds of vegetables and ornamentals.




The application rate of the compound of formula I according to this invention is usually in the range of 1 to 2000 grams of active ingredient (g a.i.) per hectare, with rates between 20-500 g a.i./ha often achieving satisfactory control. The optimal rate for a specific application will depend on the crop(s) under cultivation and the predominant species of infesting fungi, and readily may be determined by established biological tests known to those skilled in the art.




In general, the preferred application rate of the compounds of formula I is in the range of 10 to 500 g a.i./ha, preferably 20-300 g a.i./ha.




The optimal rate for the compound of group (b) including the classes (A) through (E) will, however, depend on the crop(s) under cultivation and the level of infestation by the fungus, and can readily be determined by established biological tests.




The ratio (by weight) of the compound of formula I to the fungicidal active ingredient of the classes (A) through (E) as defined above is as a rule, from 100:1 to 1:100. The preferred ratio formula I: (A) through (E) may vary, e.g., from about 10:1 to about 1:10, in particular from about 5:1 to about 1:5, most preferred from 2:1 to 1:2.




In the three-ways-compositions according to the present invention, i.e. the compositions containing one compound of formula I and two different compounds selected from the classes (A) through (E), the preferred relative ratios (by weight) are as follows:




compound of formula I: 200 to 1, preferably 20 to 1




1st compound of (A) to (E): 1 to 100, preferably 1 to 10




2nd compound of (A) to (E): 1 to 100, preferably 1 to 10.




The active compounds can be co-formulated together in a suitable ratio according to the present invention, together with usual carriers or diluents and/or additives known in the art.




Accordingly the invention further provides a fungicidal composition which comprises a carrier and, as active ingredient, at least one compound of formula I as defined above and at least one fungicidal active ingredient selected from the classes (A) through (E) as defined above.




A method of making such a composition is also provided which comprises bringing the compound of formula I and the fungicidal active ingredient selected from the classes(A) through (E) as defined above into association with at least one carrier. It is also envisaged that different isomers or mixtures of isomers of formula I and/or the fungicidal active ingredient selected from the classes (A) through (E) may have different levels or spectra of activity and thus compositions may comprise individual isomers or mixtures of isomers.




A composition according to the invention preferably contains from 0.1% to 99.9%, preferably 0.2 to 80% by weight (w/w) of active ingredients.




A carrier in a composition according to the invention is any material with which the active ingredient is formulated to facilitate application to the locus to be treated, which may for example be a plant, seed, foliage, soil, or into the water where the plant grow, or to the roots or to facilitate storage, transport or handling. A carrier may be a solid or a liquid, including material which is normally a gas but which has been compressed to form a liquid.




The compositions may be manufactured into e.g. emulsion concentrates, solutions, oil in water emulsions, wettable powders, soluble powders, suspension concentrates, dusts, granules, water dispersible granules, tablets, micro-capsules, gels and other formulation types by well-established procedures. These procedures include intensive mixing and/or milling of the active ingredients with other substances, such as fillers, solvents, solid carriers, surface active compounds (surfactants), and optionally solid and/or liquid auxilaries and/or adjuvants. The form of application such as spraying, atomizing, dispersing or pouring may be chosen like the compositions according to the desired objectives and the given circumstances.




Solvents may be aromatic hydrocarbons, e.g. Solvesso® 200, substituted naphthalenes, phthalic acid esters, such as dibutyl or dioctyl phthalate, aliphatic hydrocarbons, e.g. cyclohexane or paraffins, alcohols and glycols as well as their ethers and esters, e.g. ethanol, ethyleneglycol mono- and dimethyl ether, ketones such as cyclohexanone, strongly polar solvents such as N-methyl-2-pyrrolidone, or γ-butyrolactone, higher N-alkylpyrrolidones, e.g. N-octylpyrrolidone or N-cyclohexylpyrrolidone, epoxidized plant oil esters, e.g. methylated coconut or soybean oil ester and water. Mixtures of different liquids are often suitable.




Solid carriers, which may be used for dusts, wettable powders, water dispersible granules, or granules, may be mineral fillers, such as calcite, talc, kaolin, montmorillonite or attapulgite or others. The physical properties may be improved by addition of highly dispersed silica gel or polymers. Carriers for granules may be porous material, e.g. pumice, kaolin, sepiolite, bentonite; non-sorptive carriers may be calcite or sand or others. Additionally, a multitude of pregranulated inorganic or organic materials may be used, such as dolomite or crushed plant residues.




Pesticidal compositions are often formulated and transported in a concentrated form which is subsequently diluted by the user before application. The presence of small amounts of a carrier which is a surfactant facilitates this process of dilution. Thus, preferably at least one carrier in a composition according to the invention is a surfactant. For example, the composition may contain at two or more carriers, at least one of which is a surfactant.




Surfactants may be nonionic, anionic, cationic or zwitterionic substances with good dispersing, emulsifying and wetting properties depending on the nature of the compound according to general formula I to be formulated. Surfactants may also mean mixtures of individual surfactants.




The compositions of the invention may for example be formulated as wettable powders, water dispersible granules, dusts, granules, solutions, emulsifiable concentrates, emulsions, suspension concentrates and aerosols. Wettable powders usually contain 5 to 90% w/w of active ingredient and usually contain in addition to solid inert carrier, 3 to 10% w/w of dispersing and wetting agents and, where necessary, 0 to 10% w/w of stabilizer(s) and/or other additives such as penetrants or stickers. Dusts are usually formulated as a dust concentrate having a similar composition to that of a wettable powder but without a dispersant, and may be diluted in the field with further solid carrier to give a composition usually containing 0.5 to 10% w/w of active ingredient. Water dispersible granules and granules are usually prepared to have a size between 0.15 mm and 2.0 mm and may be manufactured by a variety of techniques. Generally, these types of granules will contain 0.5 to 90% w/w active ingredient and 0 to 20% w/w of additives such as stabilizer, surfactants, slow release modifiers and binding agents. The so-called “dry flowables” consist of relatively small granules having a relatively high concentration of active ingredient. Emulsifiable concentrates usually contain, in addition to a solvent or a mixture of solvents, 1 to 80% w/v active ingredient, 2 to 20% w/v emulsifiers and 0 to 20% w/v of other additives such as stabilizers, penetrants and corrosion inhibitors. Suspension concentrates are usually milled so as to obtain a stable, non-sedimenting flowable product and usually contain 5 to 75% w/v active ingredient, 0.5 to 15% w/v of dispersing agents, 0.1 to 10% w/v of suspending agents such as protective colloids and thixotropic agents, 0 to 10% w/v of other additives such as defoamers, corrosion inhibitors, stabilizers, penetrants and stickers, and water or an organic liquid in which the active ingredient is substantially insoluble; certain organic solids or inorganic salts may be present dissolved in the formulation to assist in preventing sedimentation and crystalization or as antifreeze agents for water.




Aqueous dispersions and emulsions, for example compositions obtained by diluting the formulated product according to the invention with water, also lie within the scope of the invention.




Of particular interest in enhancing the duration of the protective activity of the compounds of this invention is the use of a carrier which will provide slow release of the pesticidal compounds into the environment of a plant which is to be protected.




The biological activity of the active ingredient can also be increased by including an adjuvant in the formulation or the spray dilution. An adjuvant is defined here as a substance which can increase the biological activity of an active ingredient but is not itself significantly biologically active. The adjuvant can either be included in the formulation as a coformulant or carrier, or can be added to the spray tank together with the formulation containing the active ingredient.




As a commodity the compositions may preferably be in a concentrated form whereas the end user generally employs diluted compositions. The compositions may be diluted to a concentration down to 0.001% of active ingredient. The doses usually are in the range from 0.01 to 10 kg a.i./ha.




Examples of formulations which can be used according to the invention are:




















SC-I 1









active ingredient




BP-1




100.0




g






Dispersing agent




Morwet D425


1)






25.0




g






Dispersing agent




Pluronic ® PE105002


2)






5.0




g






Antifoaming agent




Rhodorsil ® 426R


3)






1.5




g






Dispersing agent




Rhodopol ® 23


3)






2.0




g






Antifreezing agent




Propylene glycol




80.0




g






Biocidal agent




Proxel ® GXL


4)






1.0




g






Water





to 1000




ml






SC-I 2






active ingredient




BP-4




100.0




g






Dispersing agent




Soprophor ® FL


3)






30.0




g






Antifoaming agent




Rhodorsil ® 426R


3)






1.5




g






Dispersing agent




Rhodopol ® 23


3)






2.0




g






Antifreezing agent




Propylene glycol




80.0




g






Biocidal agent




Proxel ® GXL


4)






1.0




g






Water





to 1000




ml






SC-A-E






active ingredient




fungicide selected from classes




200.0




g







(A) through (E)






Dispersing agent




Soprophor ® FL


3)






25.0




g






Antifoaming agent




Rhodorsil ® 426R


3)






1.5




g






Dispersing agent




Rhodopol ® 23


3)






2.0




g






Antifreezing agent




Propylene glycol




80.0




g






Biocidal agent




Proxel ® GXL


4)






1.0




g






Water





to 1000




ml






SC-I + A-E






active ingredient




BP-4




60.0




g






active ingredient




fungicide selected from classes




120.0




g







(A) through (E)






Dispersing agent




Soprophor ® FL


3)






25.0




g






Antifoaming agent




Rhodorsil ® 426R


3)






1.5




g






Dispersing agent




Rhodopol ® 23


3)






2.0




g






Antifreezing agent




Propylene glycol




80.0




g






Biocidal agent




Proxel ® GXL


4)






1.0




g






Water





to 1000




ml






DC-I 1






active ingredient




BP-4




100.0




g






Wetting agent




Pluronic ® PE6400


2)






50.0




g






Dispersing agent




Lutensol ® TO 12


2)






50.0




g






Solvent




benzyl alcohol




to 1000




ml













1)


Product commercially available from Witco












2)


Product commercially available from BASF AG, Germany












3)


Product commercially available from Rhône-Poulenc












4)


Product commercially available from Zeneca













The formulation SC-A-E comprising a compound selected from the classes (A) through (E) is in-tank mixed with any of the other formulations SC-I 1, SC-I 2, SC-I 3, or DC-I which comprise the compound of formula 1.




In a preferred embodiment the active ingredients are added to the tank mix together each as solo formulation.




Therefore, the present invention relates to a kit for the preparation of a spray mixture consisting of two separate containments:




(i) a containment which comprises at least one benzophenone of formula I, in particular one or more compounds selected from BP-1 through BP-4, conventional carriers and optionally adjuvants;




(ii) a containment which comprises at least one active ingredient selected from the classes (A) through (E).




In a preferred embodiment the said kit will consist of two bottles with dispensing means which allow the easy and correct addition of the active ingredients (a) and (b) to the tank mix.




The formulation SC-I+A-E comprising BP4 and a fungicidal active ingredient selected from the classes (A) through (E) as defined above can be used directly for preparing the tank mix according to the present invention.




A composition according to the invention preferably contains from 0.5% to 95% by weight of active ingredients.




As commodity the compositions may preferably be in a concentrated form whereas the end-user generally employs diluted compositions. The compositions may be diluted down to a concentration of 0.0001% of active ingredients.




The compositions of this invention can be applied to the plants or their environment simultaneous with or in succession with other active substances. These other active substances can be either fertilizers, agents which donate trace elements or other preparations which influence plant growth. However, they can also be other fungicides, selective herbicides, insecticides, bactericides, nematicides, algicides, molluscidides, rodenticides, virucides, compounds inducing resistance into plants, biological control agents such as viruses, bacteria, nematodes, fungi and other microorganisms, repellents of birds and animals, and plant growth regulators, or mixtures of several of these preparations, if appropriate together with other carrier substances conventionally used in the art of formulation, surfactants or other additives which promote application.




Examples of insecticidal compounds are alpha-cypermethrin, benfuracarb, BPMC, buprofezine, carbosulfan, cartap, chlorfenvinphos, chlorpyrifos-methyl, cycloprothrin, cypermethrin, esfenvalerate, ethofenprox, fenpropathrin, flucythrinate, flufenoxuron, hydramethylnon, imidacloprid, isoxathion, MEP, MPP, nitenpyram, PAP, permethrin, propaphos, pymetrozine, silafluofen, tebufenozide, teflubenzuron, temephos, terbufos, tetrachlorvinphos and triazamate.




Examples of biological control agents are:


Bacillus thuringiensis, Verticillium lecanii, Autographica californica


NPV,


Beauvaria bassiana, Ampelomyces quisqualis, Bacilis subtilis, Pseudomonas cholororaphis, Pseudomonas fluorescens, Steptomyces griseoviridis


and


Trichoderma harzianum.






Examples of chemical agents that induce systemic acquired resistance in plants such are: isonicotinic acid or derivatives thereof, 2,2-dichloro-3,3-dimethylcyclopropylcarboxylic acid.




The present invention is of wide applicability in the protection of crops, trees, residential and ornamental plants against fungal attack. Preferred crops are cereals, such as wheat and barley, rice as well as vines and apples. The duration of the protection is normally dependent on the individual compound selected, and also a variety of external factors, such as climate, whose impact is normally mitigated by the use of a suitable formulation.




The following examples further illustrate the present invention. It should be understood, however, that the invention is not limited solely to the particular examples given below.











EXAMPLES




General Methods




The trials are carried out under greenhouse (Examples 1 to 18) or field conditions (Example 19) in residual or curative applications. The fungicides are applied in single treatments, or in a combination comprising a benzophenone of formula I and a compound selected from the classes (A) through (E) as defined above. The compounds are applied in form of an aqueous spray mix obtained from concentrated formulation or the technical material.




1. Cereals and Dicots—Greenhouse




1. Seed is planted in 6 cm diameter plastic pots and maintained in the greenhouse.




2. When the primary leaf is fully expanded in the case of cereals or several leaves are present in the case of dicots, formulated test compounds are sprayed with a three nozzle overhead fungicide sprayer to near run-off. Alternatively, a single nozzle overhead track sprayer is used for application of the compounds to cereals at a rate of 200 l/ha. Plants are then allowed to air-dry.




3. Inoculation precedes treatment in the case of curative evaluations and follows treatment in case of residual evaluations.




For inoculation of powdery mildew disease, plants are set up on greenhouse benches with bottom watering mats and inoculated by dusting them with conidia from infected plants. Between inoculation and treatment for curative evaluations and between treatment and inoculation for residual evaluations, plants are maintained in the greenhouse with bottom watering.




For inoculation of non-powdery mildew diseases, an aqueous spore suspension of the pathogen is applied to the plant and the plants are kept 1-2 days in a moist infection chamber before being returned to the greenhouse where they are maintained by bottom watering.




4. Disease on the foliage as percent leaf area with disease symptoms/signs is evaluated about 7 days after inoculation. In the case of wheat, the tips and bases of the leaves are excluded from the evaluation.







%





disease





control

=

100
-



%





disease





in





treated





plants


%





disease





in





untreated





plants


×
100

%












Formulation, Reference Compounds and Controls




1. Technical compounds are formulated in a solvent/surfactant system consisting of 5% acetone and 0.05% Tween 20 in deionized water. Compounds are dissolved in acetone prior to addition of the water; the Tween 20 can be added through either the acetone or the water. Dilutions are made using the solvent/surfactant system. Formulated compounds are prepared using deionized water.




2. Two kinds of controls are included:




Plants treated with the solvent/surfactant solution and inoculated (Solvent Blank).




Untreated plants which are inoculated (Inoculated Control). For the field study formulated benzophenones BP-1 through BP-4 and formulated compounds from the classes (A) through (E) were used.




Evaluation of the Disease




Assessments of the diseases took place at the indicated day after the application of the compounds. Per cent infected leaf area infected was evaluated. The efficacy of the compounds/compounds mixtures to control the diseases was calculated by using the formula given above under item 4:




II. Apple Fruit Botrytis




1. Apples (Malus X domestica Borkh.) variety “Golden Delicious” are disinfected by washing them briefly in 70% ethanol. After drying the apples are marked with four short equal-distant lines indicating the positions to be wounded.




2. Corresponding with the marks, four holes are poked around the apple equator with a pipette tip. 10 μl of the treatment solution are pipetted into each hole.




3. Three hours after application, 10 μl of a conidial suspension of Botrytis cinerea are pipetted into each hole. For incubation, the treated/inoculated apples are stored for five days.




4. Disease occurs as rotten apple tissue surrounding the inoculated wounds. The diameter of the rotten zone around each wound is measured.




Formulation, Reference Compounds and Controls: 1




Technical compounds are formulated in a solvent system consisting of 5% acetone and 0.05% Tween 20 in deionized water. Compounds are dissolved in acetone prior to dilution with water. Formulated compounds are prepared using deionized water.




2. Three kinds of controls are included:




Apples treated with the solvent solution and inoculated (Solvent Blank).




Untreated apples which are inoculated (Inoculated Control).




Untreated apples which are not inoculated (Uninoculated Control).




Evaluation of the Disease




Assessments of the diseases took place at the indicated day after the application of the compounds. Per cent infected leaf area infected was evaluated. The efficacy of the compounds/compounds mixtures to control the diseases was calculated by using the formula:







%





disease





control

=

100
-



mean





of





diameters





on





treated





apples


mean





of





diameters





on





untreated





apples


×
100

%












Determination of Synergy




Synergy was calculated using the % disease control values of specific treatments for the two COLBY formula given hereinabove




III. Field Tests




The compounds are applied according to good agricultural practice in form of an aqueous spray mix obtained from concentrated formulation or the technical material at a rate of 400 I/ha. The disease control is evaluated according to the formula given for the greenhouse tests.




A Greenhouse Tests




Example 1




Fungicidal Efficacy of the Mixture of BP-1+AP-1 (4 Day Curative) Against


Erysiphe graminis


on Wheat




The tank mix was obtained from technical materials of BP-1 and AP-1. The observed and expected efficacies with different rates are given in Table I:















TABLE I













dose rate (ppm)

















BP-1




AP-1




Observed Efficacy




Expected Efficacy




















125




0




42












25




0




1












0




125




0












0




25




0












125




125




56




42







125




25




54




42







25




125




21




1







25




25




4




1















Example 2




Fungicidal Efficacy of the Mixture of BP-1+AP-2 (4 Day Curative) Against


Erysiphe graminis


on Wheat




The tank mix was obtained from technical materials of BP-1 and AP-2. The observed and expected efficacies with different rates are given in Table II:















TABLE II













dose rate (ppm)

















BP-1




AP-2




Observed Efficacy




Expected Efficacy




















125




0




42












25




0




1












0




125




8












0




25




0












125




125




67




47







125




25




73




42







25




125




20




9







25




25




9




1















Example 3




Fungicidal Efficacy of the Mixture of BP-1+Triadimefon (4 Day Curative) Against


Erysiphe graminis


on Wheat




The tank mix was obtained from technical material of BP-1 and a wettable powder formulation containing 250 g/kg triadimefon. The observed and expected efficacies with different rates are given in Table III:













TABLE III











dose rate (ppm)















BP-1




triadimefon




Observed Efficacy




Expected Efficacy

















125




0




42











25




0




1











0




125




30











0




25




12











125




125




85




59






125




25




56




49






25




125




41




31






25




25




6




13














Example 4




Fungicidal Efficacy of the Mixture of BP-5+Triforine (3 Day Protective) Against


Erysiphe graminis


on Wheat




The tank mix was obtained from technical material of BP-5 and an EC formulation containing 190 g/l triforine. The observed and expected efficacies with different rates are given in Table IV:















TABLE IV













dose rate (ppm)

















BP-5




triforine




Observed Efficacy




Expected Efficacy




















25




0




31












5




0




12












0




125




12












25




125




59




41







5




25




26




24















Example 5




Fungicidal Efficacy of the Mixture of BP-1+Triadimefon (3 Day Protective) Against


Erysiphe graminis


on Wheat




The tank mix was obtained from technical material of BP-1 and a wettable powder formulation containing 250 g/kg triadimefon. The observed and expected efficacies with different rates are given in Table V:













TABLE V











dose rate (ppm)















BP-1




triadimefon




Observed Efficacy




Expected Efficacy

















5




0




78











1




0




44







0




25




24











5




25




90




83






1




25




78




57














Example 6




Fungicidal Efficacy of the Mixture of BP-4+Other Fungicides (4 Day Residual) Against


Erysiphe cichoracearum


on Cucumbers




The tank mixes were obtained from technical material of BP4 and different formulations of different active ingredients. The active ingredients, the type of formulations, the observed and expected efficacies with different rates are given in Table VI:
















TABLE VI











dose rate




Observed




Expected






Compound




Formulation




(ppm)




Efficacy




Efficacy



























BP-4




TC 100%




64




100









16




51








4




6








1




1






Dithianon




WG 700 g/kg




256




0








64




0








16




0








4




0






Cyprodinil




TC 100 %




256




15








64




0








16




0








4




0






Triforine




EC 190 g/l




256




96








64




79








16




44








4




1






Fenpropidin




EC 750 g/l




256




69








64




21








16




6








4




0






Mancozeb




WP 800 g/kg




256




33








64




1








16




0








4




0






Quinoxyfen




TC 100%




256




100








64




100








16




100








4




90






Chlorothalonil




SC 500 g/l




256




1








64




0








16




0








4




0






Ethirimol




SC 280 g/l




256




100








64




94








16




83








4




50






Dimethomorph




TC 100%




256




18








64




0








16




0








4




0






BION




WG 500 g/kg




256




0








64




0








16




0








4




0






Azoxystrobin




TC 100%




256




100








64




100








16




96








4




78






BP-4




Tankmix




 64 + 256




100




100






+ Dithianon





16 + 64




73




51








 4 + 16




31




6








1 + 4




29




1






BP-4




Tankmix




 64 + 256




92




100






+ Cyprodinil





16 + 64




59




51








 4 + 16




51




6








1 + 4




32




1






BP-4




Tankmix




 64 + 256




100




100






+ Triforine





16 + 64




99




90








 4 + 16




65




47








1 + 4




31




3






BP-4




Tankmix




 64+256




100




100






+ Fenpropidin





16 + 64




96




61








 4 + 16




60




12








1 + 4




56




1






BP-4




Tankmix




 64 + 256




100




100






+ Mancozeb





16 + 64




99




52








 4 + 16




54




6








1 + 4




38




1






BP-4




Tankmix




 64 + 256




100




100






+ Quinoxyfen





16 + 64




100




100








 4 + 16




100




100








1 + 4




100




91






BP-4




Tankmix




 64 + 256




100




100






+ Chlorothalonil





16 + 64




99




51








 4 + 16




22




6








1 + 4




14




1






BP-4




Tankmix




 64 + 256




100




100






+ Ethirimol





16 + 64




100




97








 4 + 16




85




84








1 + 4




53




51






BP-4




Tankmix




 64 + 256




100




100






+ Dimethomorph





16 + 64




99




51








 4 + 16




37




6








1 + 4




10




1






BP-4




Tankmix




 64 + 256




100




100






+ BION





16 + 64




53




51








 4 + 16




12




6








1 + 4




1




1






BP-4




Tankmix




 64 + 256




100




100






+ Azoxystrobin





16 + 64




100




100








 4 + 16




99




96








1 + 4




92




78














Example 7




Fungicidal Efficacy of the Mixture of BP-4+Other Fungicides (4 Day Residual) Against


Puccinia recondita


on Wheat




The tank mixes were obtained from technical material of BP-4 and different formulations of different active ingredients. The active ingredients, the type of formulations, the observed and expected efficacies with different rates are given in Table VII:
















TABLE VII











dose rate




Observed




Expected






Compound




Formulation




(ppm)




Efficacy




Efficacy



























BP-4




TC 100%




64




100









64




0








16




0








4




0






Dithianon




WG 700 g/kg




256




95








64




84








16




16








4




4






Cyprodinil




TC 100%




256




0








64




0








16




0








4




0






Triforine




EC 190 g/l




256




100








64




90








16




7








4




0






Fenpropidin




EC 750 g/l




256




97








64




8








16




0








4




0






Mancozeb




WP 800 g/kg




256




91








64




28








16




0








4




0






Quinoxyfen




TC 100%




256




0








64




0








16




0








4




0






Chlorothalonil




SC 500 g/l




256




31








64




0








16




0








4




0






Ethirimol




SC 280 g/l




256




0








64




0








16




0






Dimethomorph




TC 100%




256




0








64




0








16




0






BION




WG 500 g/kg




256




0








64




0








16




0








4




0






BP-4




Tankmix




256 + 256




100




95






+ Dithianon





64 + 64




100




84








16 + 16




100




16








4 + 4




100




4






BP-4




Tankmix




256 + 256




100




13






+ Cyprodinil





64 + 64




100




0








16 + 16




100




0








4 + 4




100




0






BP-4




Tankmix




256 + 256




100




100






+ Triforine





64 + 64




100




90








16 + 16




100




7








4 + 4




100




0






BP-4




Tankmix




256 + 256




100




97






+ Fenpropidin





64 + 64




96




8








16 + 16




93




0








4 + 4




91




0






BP-4




Tankmix




256 + 256




100




92






+ Mancozeb





64 + 64




97




28








16 + 16




94




0








4 + 4




92




0






BP-4




Tankmix




256 + 256




89




13






+ Quinoxyfen





64 + 64




96




0








16 + 16




95




0








4 + 4




93




0






BP-4




Tankmix




256 + 256




100




40






+ Chlorothalonil





64 + 64




36




0








16 + 16




40




0








4 + 4




9




0






BP-4




Tankmix




256 + 256




96




13






+ Ethirimol





64 + 64




96




0








16 + 16




64




0






BP-4




Tankmix




256 + 256




54




13






+ Dimethomorph





64 + 64




28




0








16 + 16




6




0






BP-4




Tankmix




256 + 256




75




13






+ BION





64 + 64




78




0








16 + 16




64




0








4 + 4




59




0














Example 8




Fungicidal Efficacy of the Mixture of 4+Other Fungicides (4 Day Residual) Against


Leptosphaeria nodorum


on Wheat




The tank mixes were obtained from technical material of BP-4 and different formulation of different active ingredients. The active ingredients, the type of formulations, the observed and expected efficacies with different rates are given in Table VIII:
















TABLE VIII











dose rate




Observed




Expected






Compound




Formulation




(ppm)




Efficacy




Efficacy



























BP-4




TC 100%




256




34









64




14








16




0








4




0






Dithianon




WG 700 g/kg




256




74








64




37








16




1








4




0






Cyprodinil




TC 100%




256




93








64




88








16




75








4




0






Triforine




EC 190 g/l




256




85








64




51








16




31








4




4








1




0






Fenpropidin




EC 750 g/l




256




21








64




0






Mancozeb




WP 800 g/kg




256




69








64




47








16




21








4




0






Quinoxyfen




TC 100%




256




18








64




0








16




1






Dimethomorph




TC 100%




256




14








64




11








16




6








4




1






Azoxystrobin




TC 100%




256




100








64




100








16




97








4




84






BP-4




Tankmix




256 + 256




90




83






+ Dithianon





64 + 64




65




46








16 + 16




27




1








4 + 4




4




0






BP-4




Tankmix




256 + 256




97




96






+ Cyprodinil





64 + 64




92




90








16 + 16




80




75








4 + 4




57




0






BP-4




Tankmix




256 + 256




97




90






+ Triforine





64 + 64




84




58








16 + 16




47




31








4 + 4




32




4






BP-4




Tankmix




256 + 256




42




48






+ Fenpropidin





64 + 64




21




14






BP-4




Tankmix




256 + 256




87




79






+ Mancozeb





64 + 64




65




55








16 + 16




32




21








4 + 4




8




0






BP-4




Tankmix




256 + 256




62




46






+ Quinoxyfen





64 + 64




34




14








16 + 16




8




1






BP-4




Tankmix




256 + 256




84




43






+ CL 336 370





64 + 64




65




24






Dimethomorph





16 + 16




31




6








4 + 4




14




1






BP-4




Tankmix




256 + 256




100




100






+ Azoxystrobin





64 + 64




100




100








16 + 16




98




97








4 + 4




95




84














Example 9




Fungicidal Efficacy of the Mixture of BP4+Other Fungicides (4 Day Residual) Against


Puccinia recondita


on Wheat




The tank mixes were obtained from technical material of BP4 and different formulations of different active ingredients. The active ingredients, the type of formulations, the observed and expected efficacies with different rates are given in Table IX:
















TABLE IX











dose rate




Observed




Expected






Compound




Formulation




(ppm)




Efficacy




Efficacy



























BP-4




TC 100%




256




38









64




16








16




4








4




6






Captan




WP 500 g/kg




256




89








64




55








16




11








4




4






Fluazinam




SC 500 g/l




256




80








64




22








16




6








4




0






Metalaxyl




TC 100%




256




12








64




0






Fenpiclonil




TC 100%




256




58








64




18








16




0








4




1






Famoxadone




TC 100%




64




92








16




80








4




45






BP-4




Tankmix




256 + 256




95




93






+ Captan





64 + 64




65




62








16 + 16




30




15






BP-4




Tankmix




256 + 256




97




88






+ Fluazinam





64 + 64




53




35








16 + 16




20




10






BP-4




Tankmix




256 + 256




61




46






+ Metalaxyl





64 + 64




19




16






BP-4




Tankmix




256 + 256




81




74






+ Fenpiclonil





64 + 64




54




31








16 + 16




12




4








4 + 4




7




7






BP-4




Tankmix




64 + 64




93




93






+ Famoxadone




16 + 16




83




81








4 + 4




60




48














Example 10




Fungicidal Efficacy of the Mixture of BP4+Other Fungicides (4 Day Residual) Against


Leptosphaeria nodorum


on Wheat




The tank mixes were obtained from technical material of BP4 and different formulations of different active ingredients. The active ingredients, the type of formulations, the observed and expected efficacies with different rates are given in Table X:
















TABLE X











dose rate




Observed




Expected






Compound




Formulation




(ppm)




Efficacy




Efficacy



























BP-4




TC 100%




256




44









64




18








16




10








4




0






Dodine




WP 650 g/kg




256




59








64




24








16




6








4




0






Captan




WP 500 g/kg




256




90








64




84






Fluazinam




SC 500 g/l




256




91








64




81






Famoxadone




TC 100%




256




97








64




80








16




69








4




66






BP-4




Tankmix




256 + 256




75




77






+ Dodine





64 + 64




57




38








16 + 16




29




15








4 + 4




10




0






BP-4




Tankmix




256 + 256




96




94






+ Captan





64 + 64




93




87






BP-4




Tankmix




256 + 256




95




95






+ Fluazinam





64 + 64




91




84






BP-4




Tankmix




256 + 256




94




98






+ Famoxadone





64 + 64




89




84








16 + 16




86




72








4 + 4




67




66














Example 11




Fungicidal Efficacy of the Mixture of BP-4+Other Fungicides (4 Day Residual) Against


Erysiphe cichoracearum


on Cucumbers




The tank mixes were obtained from technical material of BP4 and different formulations of different active ingredients. The active ingredients, the type of formulations, the observed and expected efficacies with different rates are given in Table XI:
















TABLE XI











dose rate




Observed




Expected






Compound




Formulation




(ppm)




Efficacy




Efficacy



























BP-4




TC 100%




50




96









10




55








2




2








0.4




0






Sulfur inorganic




TC 100%




50




0








10




7








2




0








0.4




0






Propiconazole




EC 250 g/l




50




96








10




76








2




19








0.4




0






Epoxiconazole




SC 125 g/l




50




77








10




68








2




46








0.4




0






Tebuconazole




EC 250 g/l




50




95








10




79








2




45








0.4




10






Metconazole




SL 60 g/l




50




99








10




75








0.4




2






Myclobutanil




WP 60 g/kg




50




96








10




73








2




52








0.4




36






Kresoxim-




WG 500 g/kg




50




100






methyl





10




88








2




14








0.4




2






AC 382042




TC 100%




50




25








10




14








2




3








0.4




7






BRIO




SE 450 g/l




50




96






Epoxiconazole




/Fenpropimorph




10




48






(150 g/l)/




(300 g/l)






ACROBAT MZ




WP 690 g/kg




50




57






Dimethomorph




/Mancozeb




10




30






(90 g/kg)




/(600 g/kg)




2




0








0.4




0






JUWEL




SC 250 g/l




50




100






Kresoxim-




/Epoxiconazole.




10




98






methyl






(125 g/l)




/(125 g/l)




2




71








0.4




37






BP-4




Tankmix




50 + 50




92




96






Sulfur inorganic





10 + 10




70




58








2 + 2




10




2








0.4 + 0.4




9




0






BP-4




Tankmix




50 + 50




100




100






Propiconazole





10 + 10




100




89








2 + 2




61




21








0.4 + 0.4




28




0






BP-4




Tankmix




50 + 50




100




99






Epoxiconazole





10 + 10




98




86








2 + 2




71




47








0.4 + 0.4




41




0






BP-4




Tankmix




50 + 50




100




100






Tebuconazole





10 + .10




98




91








2 + 2




48




45








0.4 + 0.4




28




10






BP-4




Tankmix




50 + 50




100




100






Metconazole





10 + 10




97




89








0.4 + 0.4




5




2






BP-4




Tankmix




50 + 50




100




100






Myclobutanil





10 + 10




99




88








2 + 2




75




52








0.4 + 0.4




55




36






BP-4




Tankmix




50 + 50




100




100






Kresoxim





10 + 10




100




95






-methyl





2 + 2




37




15








0.4 + 0.4




2




2






BP-4




Tankmix




50 + 50




100




97






AC 382042





10 + 10




87




62








2 + 2




28




5








0.4 + 0.4




25




7






BP-4




Tankmix




50 + 50




100




100






BRIO





10 + 10




85




77






BP-4




Tankmix




50 + 50




100




98






ACROBAT MZ





10 + 10




89




69








2 + 2




45




2








0.4 + 0.4




7




0






BP-4




Tankmix




50 + 50




100




100






JUWEL





10 + 10




98




99








2 + 2




84




72








0.4 + 0.4




50




37














Example 12




Fungicidal Efficacy of the Mixture of BP-4+Myclobutanil (4 Day Residual) Against


Puccinia recondita


on Wheat




The tank mixes were obtained from technical material of BP-4 and Myclobutanil. The type of formulation, the observed and expected efficacies with different rates are given in Table XII:
















TABLE XII











dose rate




Observed




Expected






Compound




Formulation




(ppm)




Efficacy




Efficacy



























BP-4




TC 100%




50




31









10




10








2




7








0.4




2






Myclobutanil




WP 60 g/kg




50




99








10




72








2




52








0.4




13






BP-4




Tankmix




50 + 50




99




99






Myclobutanil





10 + 10




86




75








2 + 2




65




55








0.4 + 0.4




48




14














Example 13




Fungicidal Efficacy of the Mixture of BP4+Other Fungicides (4 Day Residual) Against


Pyrenophora teres


on barley




The tank mixes were obtained from technical material of BP4 and different formulations of different active ingredients. The active ingredients, the type of formulations, the observed and expected efficacies with different rates are given in Table XIII:
















TABLE XIII











dose rate




Observed




Expected






Compound




Formulation




(ppm)




Efficacy




Efficacy



























BP-4




TC 100%




50




58









10




34








2




0








0.4




0






Sulfur inorganic




TC 100%




10




0








2




0






Copper




WP 450 g/kg




50




14






oxychloride





10




14








2








0.4




0






Propiconazole




EC 250 g/l




50




74








10




38








2




0








0.4




0






Metconazole




SL 60 g/l




10




47








0.4




0






Myclobutanil




WP 60 g/kg




50




82








10




40








2




21








0.4




0






Kresoxim-




WG 500 g/kg




2




21






methyl





0.4




0






ACROBAT MZ




WP 690 g/kg




50




47






Dimethomorph/





10




23






Mancozeb





2




12








0.4




0






JUWEL




SC 250 g/l




50




89






Kresoxim-





10




62






methyl/





2




45






Epoxiconazole





0.4




5






BP-4




Tankmix




10 + 10




49




34






Sulfur inorganic





2 + 2




0




0






BP-4




Tankmix




50 + 50




78




64






Copper





10 + 10




54




43






oxychloride





2 + 2




38




0








0.4 + 0.4




0




0






BP-4




Tankmix




50 + 50




89




89






Propiconazole





10 + 10




78




59








2 + 2




32




0








0.4 + 0.4




0




0






BP-4




Tankmix




50 + 50




89




86






Tebuconazole





2 + 2




14




5








0.4 + 0.4




0




0






BP-4




Tankmix




10 + 10




69




65






Metconazole





2 + 2




25




32








0.4 + 0.4




18




0






BP-4




Tankmix




50 + 50




91




93






Myclobutanil





10 + 10




67




61








2 + 2




40




21








0.4 + 0.4




7




0






BP-4




Tankmix




2 + 2




67




21






Kresoxim-





0.4 + 0.4




36




0






methyl






BP-4




Tankmix




50 + 50




85




78






ACROBAT MZ





10 + 10




60




49








2 + 2




29




12








0.4 + 0.4




0




0






BP-4




Tankmix




50 + 50




100




95






JUWEL





10 + 10




78




75








2 + 2




49




45








0.4 + 0.4




40




5














Example 14




Fungicidal Efficacy of the Mixture of BP4+Other Fungicides (4 Day Residual) Against


Erysiphe cichoracearum


on Cucumbers




The tank mixes were obtained from technical material of BP4 and different formulations of different active ingredients. The active ingredients, the type of formulations, the observed and expected efficacies with different rates are given in Table XIV:
















TABLE XIV











dose rate




Observed




Expected






Compound




Formulation




(ppm)




Efficacy




Efficacy



























BP-4




TC 100%




50




97









10




13








2




0








0.4




0






Cyproconazole




SL 100 g/l




10




68








0.4




19






Dinocap




WP 190 g/kg




10




0








2




0








0.4




0






Fenarimol




SC 125 g/l




50




67








10




42








2




34








0.4




5






Fenpropimorph




EC 750 g/l




10




7








2




0








0.4




0






Flusilazole




WP 200 g/kg




50




38








10




19








2




0








0.4




0






Penconazole




EC 100 g/l




50




67








10




37








2




35








0.4




6






Prochloraz




EC 400 g/l




50




18








10




1








2




0








0.4




0






Pyrifenox




WP 500 g/kg




50




20








10




1








2




0








0.4




0






Triadimefon




WP 250 g/kg




50




47








10




23








2




6








0.4




0






Triadimenol




EC 250 g/l




50




68








10




45








2




21








0.4




1






Spiroxamine




EC 500 g/l




10




2








2




0








0.4




0






BP-4




Tankmix




10 + 10




84




72






Cyproconazole





0.4 + 0.4




23




19






BP-4




Tankmix




50 + 50




96




98






Dinocap





10 + 10




30




13








2 + 2




2




0








0.4 + 0.4




2




0






BP-4




Tankmix




50 + 50




100




99






Fenarimol





10 + 10




92




49








2 + 2




49




34








0.4 + 0.4




19




5






BP-4




Tankmix




10 + 10




43




19






Fenpropimorph





2 + 2




6




0








0.4 + 0.4




2




0






BP-4




Tankmix




50 + 50




100




98






Flusilazole





10 + 10




57




29








2 + 2




14




0








0.4 + 0.4




1




0






BP-4




Tankmix




50 + 50




100




99






Penconazole





10 + 10




96




45








2 + 2




66




35








0.4 + 0.4




23




6






BP-4




Tankmix




50 + 50




100




98






Prochloraz





10 + 10




71




13








2 + 2




11




0








0.4 + 0.4




7




0






BP-4




Tankmix




50 + 50




100




98






Pyrifenox





10 + 10




56




13








2 + 2




7




0








0.4 + 0.4




4




0






BP-4




Tankmix




50 + 50




99




99






Triadimefon





10 + 10




39




32








2 + 2




15




6








0.4 + 0.4




2




0






BP-4




Tankmix




50 + 50




100




99






Triadimenol





10 + 10




78




52








2 + 2




30




21








0.4 + 0.4




9




1






BP-4




Tankmix




10 + 10




37




15






Spiroxamine





2 + 2




10




0








0.4 + 0.4














Example 15




Fungicidal Efficacy of the Mixture of BP4+Other Fungicides (4 Day Residual) Against


Puccinia recondita


on Wheat




The tank mixes were obtained from technical material of BP4 and different formulations of different active ingredients. The active ingredients, the type of formulations, the observed and expected efficacies with different rates are given in Table XV:
















TABLE XV











dose rate




Observed




Expected






Compound




Formulation




(ppm)




Efficacy




Efficacy



























BP-4




TC 100%




50




12









10




6








2




0








0.4




0






Cyproconazole




SL 100 g/l




2




99








0.4




58






Dinocap




WP 190 g/kg




50




54








10




23








2




13








0.4




4






Fenarimol




SC 125 g/l




50




90








10




23








2




9








0.4




0






Fenpropimorph




EC 750 g/l




50




60








2




15








0.4




2






Flusilazole




WP 200 g/kg




50




100








2




28








0.4




5






Penconazole




EC 100 g/l




50




26








10




10








2




3








0.4




0






Prochloraz




EC 400 g/l




50




14








10




1








2




0








0.4




0






Pyrifenox




WP 500 g/kg




50




6








10




1








2




0








0.4




0






Triadimenol




EC 250 g/l




50




98








10




69








2




21








0.4




1






Spiroxamine




EC 500 g/l




50




17








10




4








2




0






BP-4




Tankmix




2 + 2




100




99






Cyproconazole





0.4 + 0.4




92




88






BP-4




Tankmix




50 + 50




61




60






Dinocap





10 + 10




38




28








2 + 2




26




13








0.4 + 0.4




10




4






BP-4




Tankmix




50 + 50




99




91






Fenarimol





10 + 10




52




28








2 + 2




15




9








0.4 + 0.4




12




0






BP-4




Tankmix




50 + 50




84




65






Fenpropimorph





2 + 2




19




15








0.4 + 0.4




13




2






BP-4




Tankmix




50 + 50




100




100






Flusilazole





2 + 2




55




28








0.4 + 0.4




14




5






BP-4




Tankmix




50 + 50




78




35






Penconazole





10 + 10




19




16








2 + 2




7




3








0.4 + 0.4




4




0






BP-4




Tankmix




50 + 50




34




25






Prochloraz





10 + 10




12




7








2 + 2




4




0








0.4 + 0.4




0




0






BP-4




Tankmix




50 + 50




31




18






Pyrifenox





10 + 10




15




7








2 + 2




5




0








0.4 + 0.4




4




0






BP-4




Tankmix




50 + 50




98




98






Triadimenol





10 + 10




89




71








2 + 2




39




21








0.4 + 0.4




10




1






BP-4




Tankmix




50 + 50




40




27






Spiroxamine





10 + 10




11




10








2 + 2




3




0














Example 16




Fungicidal Efficacy of the Mixture of BP4+Other Fungicides (4 Day Residual) Against


Pyrenophora teres


on Barley




The tank mixes were obtained from technical material of BP4 and different formulations of different active ingredients. The active ingredients, the type of formulations, the observed and expected efficacies with different rates are given in Table XVI:
















TABLE XVI











dose rate




Observed




Expected






Compound




Formulation




(ppm)




Efficacy




Efficacy



























BP-4




TC 100%




50




11









10




0








2




0








0.4




0






Cyproconazole




SL 100 g/l




10




1








2




4






Dinocap




WP 190 g/kg




50




22








10




5








2




0








0.4




0






Fenarimol




SC 125 g/l




10




4








2




0






Fenpropimorph




EC 750 g/l




10




3








2




0








0.4




0






Flusilazole




WP 200 g/kg




50




48








10




26








2




8






Prochloraz




EC 400 g/l




10




48








2




19








0.4




8






Pyrifenox




WP 500 g/kg




50




15








10




8








10




1








2




0








0.4




0






Spiroxamine




EC 500 g/l




50




16








10




5








2




3








0.4




0






BP-4




Tankmix




10 + 10




9




1






Cyproconazole





2 + 2




10




4






BP-4




Tankmix




50 + 50




29




31






Dinocap





10 + 10




15




5








2 + 2




5




0








0.4 + 0.4




9




0






BP-4




Tankmix




10 + 10




6




4






Fenarimol





2 + 2




1




0






BP-4




Tankmix




10 + 10




4




3






Fenpropimorph





2 + 2




5




0








0.4 + 0.4




5




0






BP-4




Tankmix




50 + 50




70




54






Flusilazole





10 + 10




49




26








2 + 2




26




8






BP-4




Tankmix




10 + 10




49




48






Prochloraz





2 + 2




30




19








0.4 + 0.4




19




8






BP-4




Tankmix




50 + 50




26




25






Pyrifenox





10 + 10




10




8






BP-4




Tankmix




50 + 50




29




20






Triadimefon





10 + 10




10




5






BP-4




Tankmix




50 + 50




46




21






Triadimenol





10 + 10




19




1








2 + 2




3




0








0.4 + 0.4




1




0






BP-4




Tankmix




50 + 50




43




26






Spiroxamine





10 + 10




24




5








2 + 2




6




3








0.4 + 0.4




3




0














Example 17




Fungicidal Efficacy of the Mixture of Different Benzophenones+Metconazole (2 Day Curative) Against


Blumeria graminis


f. sp.


tritici


on Wheat




The tank mixes were obtained from technical material of the benzophenones BP-2 and BP-4 and metconazole. The benzophenones, the type of formulations, the observed and expected efficacies with different rates are given in Table XVII:
















TABLE XVII











dose rate




Observed




Expected






Compound




Formulation




(ppm)




Efficacy




Efficacy



























BP-2




EC 100 g/l




54




67









18




25








6




18








2




13








0.67




4






BP-4




TC 100%




54




92








18




78








6




42








2




27








0.67




9






Metconazole




EC 100 g/L




27




40








9




14








3




7








1




2








0.33




0






BP-2




Tankmix




27 + 54




90




80






Metconazole





 9 + 18




67




35








3 + 6




46




23








1 + 2




22




12








0.33 + 0.67




9




4






BP-4




Tankmix




27 + 54




98




95






Metconazole





 9 + 18




93




81








3 + 6




49




45














Example 18




Fungicidal Efficacy of the Mixture of BP-4+AP-4 (1 Day Residual) Against


Uncinula necator


on Vines




The tank mixes were obtained from technical material of BP-4 and AP-4. The active ingredients, the type of formulations, the observed and expected efficacies with different rates are given in Table XVIII:
















TABLE XVIII











dose rate




Observed




Expected






Compound




Formulation




(ppm)




Efficacy




Efficacy



























BP-4




TC 100%




8




42









4




43








2




9








1




28








0.5




21








0.25




0






AP-4




TC 100%




1




76








0.5




76








0.25




50








0.12




32








0.06




7








0.03




13






BP-4




Tank mix




8 + 1




88




86






AP-4





  4 + 0.5




91




87








  2 + 0.25




85




79








  1 + 0.12




89




83








 0.5 + 0.06




88




81








0.25 + 0.03




79




76














B Field Tests




Example 19




Fungicidal Efficacy of the Mixture of BP-1+Metconazole in the Field Against the Sugar Beet Disease


Cercospora beticola






The tank mix was obtained from a SC formulation containing 100 g of BP-1 per liter and a SL formulation containing 60 g of metconazole per liter. The observed and expected efficacies are given in Table XIX













TABLE XIX











dose rate g/ha















BP-1




metconazole




Observed Efficacy




Expected Efficacy

















250




0




42.5











0




90




58











250




90




85.4




75.9













Claims
  • 1. A fungicidal composition comprising a fungicidally acceptable carrier and/or surface active agent and synergistically effective amounts of(a) at least one benzophenone of formula IA  wherein R1 represents a halogen atom, an optionally substituted alkyl, alkanoyloxy or alkoxy group; or a hydroxy group, R2 represents a halogen atom or an optionally substituted alkyl group, R3 independently represents a halogen atom, an optionally substituted alkyl or alkoxy group or a nitro group; R4 represents a halogen atom, a cyano, carboxy, hydroxy or nitro group or an optionally substituted alkyl, alkoxy, alkenyl, alkylthio, alkylsulphinyl, alkylsulphonyl or amino group; R5 represents an optionally substituted alkyl group; R6 represents a halogen atom or a nitro group, an optionally substituted alkyl, alkoxy, alkenyloxy, alkynyloxy, alkylthio, cycloalkyl, cycloalkoxy, aryloxy group; n is 0 or 1; and R7 independently represents a halogen atom, an optionally substituted alkyl, alkenyl, alkynyl, alkoxy, alkenyloxy, alkynyloxy, cycloalkyl, cycloalkoxy group; (b) at least one fungicidally active azolopyrimidine of formula II  in which R8 and R9 each independently represent hydrogen or an optionally substituted alkyl, alkenyl, alkynyl, alkadienyl, aryl, heteroaryl, cycloalkyl, bicycloalkyl or heterocyclyl group, or R8 and R9 together with the interjacent nitrogen atom represent an optionally substituted heterocyclic ring, R10 represents hydrogen or an alkyl group or aryl group, R11 represents a hydrogen or halogen atom or an alkyl or alkoxy group, L independently represents a halogen atom or an optionally substituted alkyl or alkoxy group, A represents N or CR12, wherein R12 has the meaning given for R10, and p is 0 or an integer from 1 to 5.
  • 2. The composition defined in claim 1, whereinR1 represents a halogen atom, a methyl, trifluoromethyl, methoxy or hydroxy group; R2 represents a halogen atom or a methyl group; R3 represents a bromo or chloro atom, a methyl, trifluoromethyl or nitro group; R4 represents a methyl group; R5 represents an alkyl group; R6 and R7 each independently represent an alkoxy group which may be substituted by a phenyl, alkylphenyl or halophenyl group.
  • 3. The composition defined in claim 1, wherein the benzophenone of formula IA is selected from6′-butoxy-2,6-dichloro-4′,5′-dimethoxy-2′-methylbenzophenone; 2,6-dichloro-4′,5′-dimethoxy-6′-(2-fluorobenzyloxy)-2′-methylbenzophenone; 6′-benzyloxy-4′,5′-dimethoxy-2,6-dimethyl-2′-methylbenzophenone; 5-bromo-2′,6-dimethyl-2,4′,5′,6′-tetramethoxybenzophenone; and 2,6-dichloro-2′-methyl-4′,5′,6′-trimethoxybenzophenone.
  • 4. The composition defined in claim 1, wherein the azolopyrimidine is of formula IIA, wherein R8 represents an alkyl, alkenyl, cycloalkyl or haloalkyl group, and R9 represents a hydrogen atom, or an alkyl group; or R8 and R9 together form an optionally substituted alkylene group having 3 to 6 carbon atoms in the main chain, in which one CH2 group may be replaced by O, S or NH; L1, L2 and L3 each independently represent a hydrogen or halogen atom or a C1-4 alkoxy group, at least one of which represents a halogen atom; and Hal denotes a halogen atom.
  • 5. The composition defined in claim 4, wherein Hal represents a chlorine atom, L1 represents a fluorine atom; L2 represents a hydrogen or fluorine atom or a methoxy group and L3 represents a fluorine or chlorine atom.
  • 6. The composition defined in claim 7, wherein the azolopyrimidine of formula IIA is selected from the group consisting of5-chloro-6-(2-chloro-6-fluorophenyl)-7-(cyclopropylamino)[1,2,4]-triazolo[1,5-a]pyrimidine; 5-chloro-6-(2-chloro-6-fluorophenyl)-7-(4-methylpiperid-1-yl)-[1,2,4]triazolo[1,5-a]pyrimidine; 5-chloro-6-(2-chloro-6-fluorophenyl)-7-(2,2,2-trifluoroethylamino)[1,2,4]triazolo[1,5-a]pyrimidine; and 5-chloro-6-(2,4,6-trifluorophenyl)-7-[1,1,1-(trifluoro)propylamino][1,2,4]triazolo[1,5-a]pyrimidine.
  • 7. The composition defined in claim 1, wherein the benzophenone of formula IA and the the azolopyrimidine of formula II are present in a weight ratio of from 10:1 to 1:10.
  • 8. The composition defined in claims 7, wherein the weight ratio of the benzophenone to the azolopyrimidine is from 5:1 to 1:5.
  • 9. A method of controlling fungal growth at a locus which comprises applying the composition defined in claim 1 to the locus.
  • 10. A method of controlling growth of powdery mildew at a locus which comprises applying the composition defined in claim 1 to the locus.
  • 11. The composition defined in claim 1, wherein the benzophenone is 5-bromo-2′,6-dimethyl-2,4′,5′,6′-tetramethoxybenzophenone.
  • 12. The composition defined in claim 11, wherein the azolopyrimidine is 5-chloro-6-(2,4,6-trifluorophenyl)-7-[1,1,1-(trifluoro)propylamino][1,2,4]triazolo[1,5-a]pyrimidine.
  • 13. The composition defined in claim 1, wherein the azolopyrimidine is 5-chloro-6-(2,4,6-trifluorophenyl)-7-[1,1,1-(trifluoro)propylamino][1,2,4]triazolo[1,5-a]pyrimidine.
Parent Case Info

This application claims priority from copending provisional application(s) serial No. 60/117725 filed on Jan. 29, 1999.

US Referenced Citations (10)
Number Name Date Kind
5294597 Foster et al. Mar 1994 A
5593996 Pees et al. Jan 1997 A
5679866 Curtze et al. Oct 1997 A
5773663 Curtze et al. Jun 1998 A
5866722 Curtze et al. Feb 1999 A
5922905 Curtze et al. Jul 1999 A
5922919 Curtze et al. Jul 1999 A
5945567 Curtze et al. Aug 1999 A
6277856 Cotter et al. Aug 2001 B1
6346535 Cotter et al. Feb 2002 B1
Foreign Referenced Citations (4)
Number Date Country
0262393 Aug 1987 EP
0447004 Sep 1991 EP
WO 9846607 Oct 1998 WO
WO 9846608 Oct 1998 WO
Non-Patent Literature Citations (1)
Entry
The Pesticide Manual, 11th edition, 1997, Editor Clive Tomlin pp. 1601-1606.
Provisional Applications (1)
Number Date Country
60/117725 Jan 1999 US