Claims
- 1. A herbicidal composition containing at least one compound selected from the compounds of the formulae Ia and Ib ##STR40## where R.sup.1 is halogen or C.sub.1 -C.sub.4 -alkyl which may bear from one to three chlorine atoms,
- R.sup.2 is C.sub.1 -C.sub.6 -alkyl which may bear from one to three of the radicals halogen, C.sub.1 -C.sub.4 -alkoxy and/or C.sub.1 -C.sub.4 -alkoxy-C.sub.1 -C.sub.4 -alkoxy, or is C.sub.3 -C.sub.6 -alkenyl, C.sub.3 -C.sub.6 -alkynyl or C.sub.3 -C.sub.6 -cycloalkyl,
- R.sup.3 is hydrogen or C.sub.1 -C.sub.4 -alkyl,
- R.sup.4 is a phenyl ring or a 5- or 6 membered heteroaromatic ring selected from the group consisting of pyrrole, pyrazole, imidazole, furan, thiozole, isoxazole, isothiazole, pyridine, pyridazine, pyrimidine or pyrazine, and these aromatic rings may bear from one to three of the following groups: halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -haloalkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -haloalkoxy, C.sub.1 -C.sub.4 -alkylthio, C.sub.1 -C.sub.4 -alkylsulfinyl, C.sub.1 -C.sub.4 -alkylsulfonyl, C.sub.1 -C.sub.4 -alkylcarbonyl, C.sub.1 -C.sub.4 -alkoxycarbonyl, carboxyl, nitro and/ cyano and at least one herbicidally active ingredient selected from the group consisting of
- a) 2-(4-heteroaryloxy)- or 2-(4-aryloxy)phenoxyacetic acid derivatives of the formula IV ##STR41## where R.sup.a is phenyl, pyridyl, benzoxazyl, benzothiazyl or benzopyrazinyl, and these aromatic ring systems may bear up to two of the following radicals: halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -haloalkyl and/or C.sub.1 -C.sub.4 -haloalkoxy,
- R.sup.b is hydrogen, C.sub.1 -C.sub.5 -alkyl, C.sub.3 -C.sub.5 -alkylideneimino, C.sub.3 -C.sub.5 -alkylideneiminooxy-C.sub.2 -C.sub.3 -alkyl, or one equivalent of a plant-tolerated cation, and
- R.sup.c is hydrogen or methyl, and
- b) cyclohexenone derivatives of the formula V ##STR42## where R.sup.d is C.sub.1 -C.sub.4 -alkyl;
- R.sup.e is C.sub.1 -C.sub.4 -alkyl, C.sub.3 -C.sub.4 -alkenyl, C.sub.3 -C.sub.4 -alkynyl, C.sub.3 -C.sub.4 -haloalkenyl or thenyl which may carry a halogen atom;
- R.sup.f is C.sub.1 -C.sub.4 -alkyl which is unsubstituted or monosubstituted by C.sub.1 -C.sub.4 -alkylthio or C.sub.1 -C.sub.4 -alkoxy; a 5- or 6-membered saturated or monounsaturated ring system, which in addition to carbon members may contain an oxygen or a sulfur atom or a sulfoxyl or sulfonyl group, and this ring may bear from one to three of the following radicals: hydroxyl, halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -haloalkyl, C.sub.1 -C.sub.4 -alkoxy and/or C.sub.1 -C.sub.4 -alkylthio; a 10-membered saturated or monounsaturated heterocyclic structure containing two oxygen or sulfur atoms and which is unsubstituted or mono- to trisubstituted by C.sub.1 -C.sub.4 -alkyls and/or methoxy groups; phenyl, pyridyl or isoxazolyl, and these groups may bear up to three of the following groups: C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -haloalkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -alkylthio, C.sub.3 -C.sub.6 -alkenyloxy, C.sub.3 -C.sub.6 -alkynyloxy, C.sub.1 -C.sub.4 -alkoxy-C.sub.1 -C.sub.3 -alkyl, C.sub.1 -C.sub.4 -dialkoxy-C.sub.1 -C.sub.3 -alkyl, formyl, halogen and/or benzolyamino;
- R.sup.g is hydrogen, hydroxy or, when R.sup.f is C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkyl;
- R.sup.h is hydrogen, cyano, halogen or C.sub.1 -C.sub.4 -alkoxycarbonyl and
- R.sup.i is hydrogen or one equivalent of an environmental compatible cation.
- 2. A herbicidal composition as set forth in claim 1, containing a compound Ia and/or Ib and a herbicide a) or a herbicide b) in a weight ratio of from 4:1 to 0.01:1.
- 3. A process for the selective control of unwanted plants, wherein a compound of the formula Ia and/or Ib as set forth in claim 1 and a 2-(4-heteroaryloxy)- or 2-(4-aryloxy)-phenoxyacetic acid derivative of the formula IV as set forth in claim 1 or a cyclohexenone derivative of the formula V as set forth in claim 1 are applied simultaneously or one after the other during or after sowing of the crop plants or prior to or during emergence of the crop plants.
- 4. A process for preventing damage to crop plants by herbicidal 2-(4-heteroaryloxy)- or 2-(4-aryloxy)-phenoxyacetic acid derivatives of the formula IV as set forth in claim 1 or by herbicidal cyclohexenone derivatives of the formula V as set forth in claim 1, wherein the seed of the crop plants is treated with an antagonistically effective amount of a compound of the formula Ia and/or Ib as set forth in claim 1.
- 5. A process for the selective control of unwanted plants, wherein the leaves of the crop plants and unwanted plants are treated postemergence and either simultaneously or one after the other with a compound of the formula Ia and/or Ib as set forth in claim 1 and with a 2-(4-heteroaryloxy)- or 2-(4-aryloxy)-phenoxyacetic acid derivative of the formula IV as set forth in claim 1 or with a cyclohexenone derivative of the formula V as set forth in claim 1.
- 6. A process as set forth in claim 3, where the crop plants are barley, wheat, Indian corn, sorghum or rice.
- 7. A process as set forth in claim 4, where the crop plants are barley, wheat, Indian corn, sorghum or rice.
- 8. A process as forth in claim 5, where the crop plants are barley, wheat, Indian corn, sorghum or rice.
- 9. A composition as defined in claim 1, which comprises a compound of the formula Ia in which R.sup.1 is methyl, R.sup.2 is ethyl, R.sup.3 is hydrogen and R.sup.4 is 2-4-dichlorophenyl and a cyclohexenone derivative of the formula V which is ##STR43##
- 10. A herbicidal composition as defined in claim 1, wherein R.sup.4 of the compounds Ia and Ib is unsubstituted or substituted phenyl.
Priority Claims (1)
Number |
Date |
Country |
Kind |
3902439 |
Jan 1989 |
DEX |
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Parent Case Info
This is a divisional application of Ser. No. 07/462,631, filed Jan. 9, 1990 (now U.S. Pat. No. 5,043,454).
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
4591377 |
Leone-Bay et al. |
May 1986 |
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4717418 |
Warner et al. |
Jan 1988 |
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Divisions (1)
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Number |
Date |
Country |
Parent |
462631 |
Jan 1990 |
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