Patent Grant
11083147
The market for treating cyst nematodes in sugar beets, cole crops, and particularly soybeans is very large. As synthetic contact nematicide chemistry and soil fumigants face greater scrutiny, and as new nematicide, insecticide, bactericide, and fungicide chemistry pipelines shrink due to increasing regulatory thresholds, sustainable biological pesticides such as plant extracts are becoming more important alternatives, particularly those that give similar levels of control as the conventional pesticides and fumigants. Economic and environmental conditions create opportunities for biological treatments of diseases caused by plant parasitic nematodes, insects, mites, bacteria, and fungi. As a result, there is a significant demand for more environmentally-friendly solutions that makes the investment in research and development of new biologically derived nematicides worthwhile.
Currently, $1.5 billion a year is lost to soybean cyst nematode alone. Resistant soybean varieties do not last long because of the difficult crosses for hybrids with resistance. The genetic pool is diverse and breaks resistance in 2 to 3 years on average. Applications other than seed treatments in the past have been expensive. Therefore, applying contact nematicides placed in the seed furrow at planting has been the primary application method. Because of toxicity toward animals nearby, such as birds, overhead center pivots with liquid applications of toxic compounds such as Nemacur, Temik, Furadan, Dazinat and Mocap have all fallen out of favor.
Methyl bromide, a synthetic soil fumigant, poses health and environmental hazards, and is being phased out under an international ban. Since the 1960's, methyl bromide has been used by growers to effectively sterilize fields before planting to primarily control nematodes, as well as to treat disease and weeds; however, because this toxic compound is used in gas form, more than half the amount injected into soil can eventually end up in the mr. Rising into the atmosphere, it contributes to the thinning of the ozone layer. In 2005, developed countries banned methyl bromide under the Montreal Protocol, which is an international treaty signed in 1987 to protect the stratospheric ozone layer.
Under the ban, the treaty allows limited use of methyl bromide In strawberries, almonds, and other crops that lack alternatives for both effective and affordable control of nematodes, disease, and weeds. The extent of authorized use diminishes every year and will likely end soon. Finding alternatives to methyl bromide is, thus, a priority to the USDA, which provided a $5 million grant that supported research to identify alternatives since 2010. However, no single product provides the wide spectrum of control offered by methyl bromides. Growers facing the inevitable transition to alternative products are seeking viable alternatives with varying degrees of success.
Historically, “soft” nematicides, such as those derived from bacteria or fungi, have been used. They are generally weaker and can rapidly leach through the soil, lacking the residual effect to control the nematodes. The biologically derived cinnamic acid, on the other hand, offers potent initial control, short-duration residual control, and the safety of soft nematicides. As an example, the guayule plant, also known as Parthenium argentatum Gray, is currently being grown commercially in limited quantities for the extraction of latex rubber. The concentration of cinnamic acid in the resin fraction of the guayule plant has been well known due to prior commercialization attempts for rubber extraction in the 1940's and the 1980's. However, what has not been well know until this recent discovery is the effect of various compounds and the derivatives thereof harvested from the guayule plant in treating and controlling nematodes and other plant pests has not been extensively studied. Although the guayule has been known to be resistant to endoparasitic nematodes such as root knot and lesion nematode since 1948, the assumption was that cinnamic acid exudates were the reason for reduction or non-entry of these endoparasites into the root. However, in accordance with the current invention it has been found that enzymes and plant hormones in a guayule extract are also greatly involved with multiple modes of action to control or suppress plant parasitic nematodes, insects and increase plant productivity through upregulation of plant genes.
The subject invention provides compositions and methods for improving plants' defense against exogenous attacks by employing one or more compounds extracted from a single or multiple species of plants. The subject invention further provides materials and methods useful for gene and plant growth regulation.
In a specific embodiment, the composition comprises one or more isoprenoid and other compounds, derived from Parthenium argentatum Gray and more specifically, trans-cinnamic acid; 3,4-dihydroxyhydrocinnamic acid; and 3-hydropropionic acid. These compounds can be used along with enzymes that, when applied to nematodes or insects, can, for example, dissolve chitin and/or protein of molting insects. The enzymes may be, for example, latex/rubber transferases.
Compositions provided herein can be used to treat living plants and plant-derived products such as dried wood, dried roots, lumber, and dried fruits.
Preferred compositions can regulate expression of genes responsible for the plants' defense mechanisms in order to create physical and/or chemical barriers, and/or induce the plant to produce detouring exudates, antagonistic compounds, and/or fumigating compounds that prevent and/or treat damage from pests in agronomic or non-agronomic plants.
Thus, in one aspect, the subject invention provides a composition for regulating a target plant's genes and/or hormones such as, for example, plant growth regulators (PGRs), wherein the composition comprises one or more compounds that can be extracted from parts of plants, or a derivative of such a compound.
In specific embodiments, the compounds are from plants that are grown in harsh environments, such as, for example, dry environments, highly salinity environments, high altitude, extreme pH and/or extreme temperature. Advantageously, when applied at proper rates, in certain embodiments, compositions provided herein are used to repel, resist, remove, disable, fumigate, alter, and/or kill pests in a variety of environments.
The compounds may have, for example, at least one of the following effects: increasing a plant's repellency through exudates, inducing a plant's systemic resistance against exogenous attacks, and enhancing a plant's physical and chemical barriers. In certain preferred embodiments, the compositions comprise isoprenoid compounds.
In certain embodiments, the compound can be cinnamic acid, or a derivative thereof. The compound can also be a protease or chitinase. Preferably, the compounds are extracted from a desert plant Parthenium argentatum Gray, also referred to as the guayule plant.
In some embodiments, the composition further comprises one or more additives that can be selected from, for example, wetting agents, adjuvants, and inert chemicals.
Exemplary embodiments provide compositions that comprise isoprenoids that can up or down-regulate one or more genes that are directly or indirectly involved in a plant's defense system, including secondary metabolites found in a plant's defense-building pathways. In preferred embodiments, the effects of the genetic and/or hormonal regulations are temporary without permanently modifying the plant's genes.
In certain embodiments, the exogenous attacks can be biotic or abiotic in nature. Non-limiting examples of biotic attacks include plant parasites, herbivores, bacteria, fungi, and invasive plants such as weeds. Abiotic attacks can be caused by, for example, changes in the plant's environment. In some embodiments, the exogenous attacks are abiotic in nature, originating from extreme physical conditions that include, but are not limited to, changes in temperature, light exposure, salinity, water quality, soil, and other factors affecting the target plant's growth.
In a specific embodiment, the compositions provided herein are effective in treating plants infested with parasitic nematodes. In one embodiment, the population of beneficial microbes is maintained or enhanced.
In another aspect, the subject invention provides a method of improving a target plant's defense against exogenous attacks, comprising temporarily regulating the plant's genes and/or hormones by externally applying, either on or near the plant, a composition of the subject invention. The genetic and/or hormonal regulations may have one or more of the following effects: increasing the plant's repellency through exudates, inducing the plant's systemic resistance against the attacks, and enhancing the plant's physical and/or chemical barriers.
In some embodiments, the chemical barriers resulting from the genetic regulations provided herein include, but are not limited to, production of antagonistic compounds such as phytoalexins, fumigating compounds, and compounds that can alter the taste, smell, and/or pheromones characteristic to the target plant.
In certain embodiments, the genetic and/or hormonal regulations are effective in inhibiting the pests' abilities to find, penetrate, and subsequently consume the target plant. Further, in certain embodiments, the compositions of the subject invention can interfere with the pests' ability to mate.
In some embodiments, the composition is applied as a seed treatment or to the soil surface with or without mechanical incorporation.
Advantageously, preferred embodiments of the subject invention provide naturally-derived treatments without permanently modifying the plants' genes, and are effective in improving crop yield and maintaining the health of the soil. Further, unlike conventional pesticides that only kill pests, in certain embodiments compositions provided herein can improve a target plant's own defense mechanisms against exogenous attacks.
Objects, features, and advantages of the invention will be apparent to those skilled in the art from the detailed description of the invention which will now follow, taken in conjunction with the tables, drawings, and the accompanying claims.
The subject invention provides compositions and methods for improving a plant's defense against attacks and/or modulating plant growth and/or health. Specifically exemplified herein are compositions comprising naturally-derived compounds that can be extracted from plants, or derivatives of such compounds. In a specific embodiment, the compositions of the subject invention comprise an isoprenoid compound, and more specifically, trans-cinnamic acid, or derivatives thereof, extracted from Parthenium argentatum Gray.
Compositions provided herein can be used to treat living plants as well as plant derived products such as dried wood, dried roots, lumber, and dried fruits. Preferred compositions can regulate expressions of genes responsible for the plant defense and/or growth and/or health. In certain embodiments, the compositions of the subject invention can be used to induce the plant to create physical and/or chemical barriers so as, for example, producing detouring exudates, antagonistic compounds, or fumigating compounds that prevent, reduce and/or repair damage from pests and/or physical insults in agronomic and/or non-agronomic plants.
Advantageously, preferred embodiments of the subject invention provide naturally-derived treatments that can be used to achieve the advantageous results without permanently modifying a plant's genes. Advantageously, in certain embodiments, the compositions and methods are effective in improving crop yield and maintaining the health of the soil.
In one aspect, the subject invention provides compositions for regulating a target plant's genes and/or hormone production such as, for example, plant growth regulators (PGRs). In preferred embodiments, the compositions of the subject invention comprise compounds that can be extracted from plants that grow in harsh environments, or derivatives of such compounds. In preferred embodiments, the composition has one or more of the following effects: increasing a plant's ability to repel one or more pests via exudates, inducing the plant's systemically acquired resistance against exogenous attacks, and enhancing the plant's physical and chemical barriers. In certain embodiments, the composition comprises an isoprenoid compound.
An isoprenoid compound, as used herein, comprises two or more isoprene molecules bonded together as the backbone structure with optionally substituted functional groups attached thereto. An unsubstituted isoprene molecule, also known as 2-methy-1,3-butadiene, is an unsaturated hydrocarbon molecule. Cinnamic acid and its hydroxy derivative caffeic acid, 3,4-dihydroxyhydrocinnamic acid and 3-hydropropionic acid. The subject invention also contemplates the use of latex/rubber transferase enzymes.
In some embodiments, the isoprene molecules can be extracted from a plant such as, but not limited to, Selaginella lepidophylla, Parthenium incanum, Parthenium argentatum Gray, Yucca schidigera, Quillaja saponaria, Betula species, Juglans species, and/or Ascophyllum species.
In some embodiments the plant is one that grows in a harsh environment. The harsh environment can be, for example, one that lacks necessary precipitation for growing other plants, areas located at elevated altitude, areas having high salinity, and areas characterized by extreme temperatures or pH of the soil. Non-limiting examples of harsh environments include deserts and other arid regions, mountains, and land near bodies of saltwater such as oceans or saltwater lakes.
In certain embodiments, arid conditions refer to a location that receives less than 15, 10, 5, or 2 inches of rain per year. In certain embodiments, elevated altitude refers to higher than 5,000; 7,000; 9,000; or 11,000 feet above sea level. In certain embodiments, high salinity refers to a salinity in the growing medium (e.g., soil) as measured by electrical conductivity of greater than 3.5 mmhos/cm, 4.0 mmhos/cm, or 4.5 mmhos/cm. In certain embodiments, extreme temperatures refer to below 0° C., −5° C., −15° C., or −20° C. In certain embodiments, extreme temperatures refer to above 30° C., 35° C., 40° C., or 45° C. In certain embodiments, extreme pH refers to below 5, 4, or 3, or above 9, 10, or 11.
In a specific embodiment, the isoprenoid compound preferably comprises cinnamic acid in the trans form, or derivatives thereof, extracted from Parthenium argentatum Gray, the guayule plant, typically grown in desert environments. Non-limiting examples of derivatives of cinnamic acid are caffeic acid; 3,4-dihydroxyhydrocinnamic acid; and 3-hydropropionic acid.
In some embodiments, the compounds useful according to the subject invention can be extracted from a whole plant or from a part of the plant. Non-limiting examples of these plant parts include seed, pollen, wax, stems, leaves, fruit, reproductive parts, roots, and trichomes. In a specific embodiment, the compositions are derived from the roots of the plant. Advantageously, the compositions of the subject invention, which can be derived from these plants or plant parts, can be used to promote plant health and/or growth according to the subject invention without adversely impacting the environment to which they are applied. In addition, these compositions are non-toxic to humans, birds, fish, livestock and pets.
In some embodiments, the compositions can be extracted using an aqueous extraction procedure. Embodiments of the subject invention also provide methods of extracting and packaging the compositions.
Advantageously, in certain embodiments the subject invention provides compositions with trans-cinnamic acid, 3,4-dihydroxyhydrocinnamic acid, derived from natural plant sources rather than from synthetic methods yielding cinnamic aldehydes, which are found in conventional products. The chemical procedures involving saponin skeleton and terpene are safe and effective for use in agronomic and minor crops, greenhouses, golf courses, turf farms, outdoor nurseries, hydroponics, and outdoor plants in neighborhoods, without causing concerns for toxicity to humans, birds, and other plant and/or animal life in proximity to the site of treatment.
In some embodiments, the composition further comprises additives selected from, for example, wetting agents, adjuvants, and inert chemicals.
Evidence from trials has confirmed the effectiveness of using a guayule-derived composition as the primary active ingredient optionally blended with other biological compounds in controlling parasitic nematodes and other pests. Biological compounds suitable for blending with guayule extract include, for example, saponins derived from quillaia, which is itself an extract of Quillaja saponaria, commonly known as the soap bark tree, and extracts of the desert plant Yucca schidigera. Saponins can also serve as a surfactant for the blended composition.
In preferred embodiments, the effects of the genetic and/or hormonal regulations are temporary without permanently modifying a plant's genes. Therefore, unlike genetically modified organisms (GMOs), external application of the composition can be used to achieve a targeted and controlled effect.
In an exemplary embodiment, using an aqueous extraction of molecules from the whole plant or the roots of a guayule plant, it is determined that the residual for cyst nematodes can to be approximately two weeks before repeating the application.
Unlike root knot nematodes, half the population (the males) of cyst nematodes are of the root system for the first month of the nematode life cycle. As a result, when applied properly the residual of the compositions provided herein can be effective at an early stage before they dissipate.
In specific embodiments, the compositions of the subject invention can be used to modulate the expression of genes that are directly or indirectly involved in the functions of plant growth regulators (PGRs), as well as secondary metabolites such as, for example, flavoids, found in the plant's defense-building pathways. Three primary components of the Guayule plant extract are aspartic acid, which conjugates auxin when applied to the upper part of the plants tested, as well as impact roots when treated, as well as succinic and lactic acid, which act on the root system to increase lateral root growth. In preferred embodiments, the subject composition further comprises aspartic acid, cysteine, and glutamine.
Five principal categories of plant hormones are: auxins, cytokinins, gibberellins, abscisic acid, and ethylene. One additional category of plant hormones is jasmonates, of which jasmonic acid is a non-limiting example. Auxins, primarily indole-3-acetic acid (IAA), promote both cell division and cell elongation, and maintain apical dominance. Auxins also stimulate secondary growth in the vascular cambium, induce the formation of adventitious roots and promote fruit growth.
In some embodiments of the current invention, genes regulating all categories of the aforementioned plant hormones respond to the treatment comprising the compositions of the subject invention.
A non-exhaustive list of the genes that can be up or down regulated includes GA-biosynthetic GA1 (cds) (Acc. No. AT4G02780), GA2 (eks) (Acc. No. AT1G79460), AtKOllGA3 (Acc. No. AT5G25900), CYP88A3/KA02 (Ace. No. ATIG05160), AtGa20ox/Ga5 (Ace. No. AT4G25420), AtOX3 (Ace. No. ATI G 15550), At20X (Ace. No. ATI G02400), ABA-biosynthetic PDS (Ace. No. AT5GI7230), ZEP (Ace. No. AT5G67030), (NCED #1) (Ace. No. AT4GI8350), NCED #2 (Ace. No. ATI G78390), NCED3 cplast (Ace. No. AT3G 14440), (NCED #4) (Ace. No. AT3G24220), NCED5 cplast (Ace. No. ATIG30100), SDR,ABA2/GINI (Ace. No. ATIG52340), AA03 (Ace. No. AT2G27150), MOCO,LOS5/ABA3 (Ace. No. AY034895), ABA 8′ hydroxylase IAA-biosynthetic/related (Ace. No. CYP707 A4), cyp mono oxygenase (Ace. No. AT4G39950), cyp monooxygenase (Ace. No. AT2G22330), TRP monooxygenase (Ace. No. AT4G32540), nitrilase (Ace. No. AT3G44300), nitrilase (Ace. No. AT3G44310), nitrilase (Ace. No. AT3G44320), hydrolase/nitrilase (Ace. No. AT4G08790), aldehyde oxidase (Ace. No. AT5G20960), IAA deonjugation (Ace. No. AT5G56660), IAA deonjugation (Ace. No. ATIG51760), IAA deonjugation (Ace. No. AT3G02875), IAA conjugation (Ace. No. AT2G23260), IAA receptor (Ace. No. AT3G62980), IAA influx carrier (Ace. No. AT2G38120), IAA efflux carrier (Ace. No. ATIG73590), Auxin redirection at root tip ETH-biosynthetic (Ace. No. AT2G47000), ACC oxidase (Ace. No. ATIG05010), ACC oxidase (Ace. No. ATIG62380), ACC synthase (Ace. No. AT2G22810), ACC synthase (Ace. No. AT5G65800), ACC synthase (Ace. No. AT4GI1280), ACC synthase (Ace. No. AT4G37770), ACC synthase (Ace. No. AT4G08040), CYK-biosynthetic CYK synthase (Ace. No. ATIG25410), CYK synthase (Ace. No. AT3GI9160), CYK Synthase (Ace. No. AT3G63110), CYK synthase (Ace. No. AT4G24650), CYK synthase (Ace. No. AT5G 19040), CYK oxidase (Ace. No. ATI G75450), CYK oxidase (Ace. No. AT2GI9500), CYK oxidase (Ace. No. AT2G41510), CYK oxidase (Ace. No. AT3G63440), CYK oxidase (Ace. No. AT4G29740), CYK oxidase (Ace. No. AT5G21482), CYK oxidase (Ace. No. AT5G56970), and PDF1.2c (defensin 4) (Ace. No. AT5G44430).
Plants that can benefit from application of the composition of the subject invention include: Row Crops (e.g., Corn, Soy, Sorghum, Peanuts, Potatoes, etc.), Field Crops (e.g., Alfalfa, Wheat, Grains, etc.), Tree Crops (e.g., Walnuts, Almonds, Pecans, Hazelnuts, Pistachios, etc.), Citrus Crops (e.g., orange, lemon, grapefruit, etc.), Fruit Crops (e.g., apples, pears, etc.), Turf Crops, Ornamentals Crops (e.g., Flowers, vines, etc.), Vegetables (e.g., tomatoes, carrots, etc.), Vine Crops (e.g., Grapes, Strawberries, Blueberries, Blackberries, etc.).
The benefit can be in the form of, for example, increase yield, quality, disease and pest resistance, etc.
Plants that can benefit from the methods of the invention include all plants which belong to the superfamily Viridiplantae, in particular monocotyledonous and dicotyledonous plants including fodder or forage legumes, ornamental plants, food crops, trees or shrubs selected from the list comprising Acer spp., Actinidia spp., Abelmoschus spp., Agave sisalana, Agropyron spp., Agrostis stolonifera, Allium spp., Amaranthus spp., Ammophila arenaria, Ananas comosus, Annona spp., Apium graveolens, Arachis spp, Artocarpus spp., Asparagus officinalis, Avena spp. (e.g. Avena sativa, Avena fatua, Avena byzantina, Avena fatua var. sativa, Avena hybrida), Averrhoa carambola, Bambusa sp., Benincasa hispida, Bertholletia excelsea, Beta vulgaris, Brassica spp. (e.g. Brassica napus, Brassica rapa ssp. [canola, oilseed rape, turnip rape]), Cadaba farinosa, Camellia sinensis, Canna indica, Cannabis sativa, Capsicum spp., Carex elata, Carica papaya, Carissa macrocarpa, Carya spp., Carthamus tinctorius, Castanea spp., Ceiba pentandra, Cichorium endivia, Cinnamomum spp., Citrullus lanatus, Citrus spp., Cocos spp., Coffea spp., Colocasia esculenta, Cola spp., Corchorus sp., Coriandrum sativum, Corylus spp., Crataegus spp., Crocus sativus, Cucurbita spp., Cucumis spp., Cynara spp., Daucus carota, Desmodium spp., Dimocarpus longan, Dioscorea spp., Diospyros spp., Echinochloa spp., Elaeis (e.g. Elaeis guineensis, Elaeis oleifera), Eleusine coracana, Eragrostis tef, Erianthus sp., Eriobotrya japonica, Eucalyptus sp., Eugenia uniflora, Fagopyrum spp., Fagus spp., Festuca arundinacea, Ficus carica, Fortunella spp., Fragaria spp., Ginkgo biloba, Glycine spp. (e.g. Glycine max, Soja hispida or Soja max), Gossypium hirsutum, Helianthus spp. (e.g. Helianthus annuus), Hemerocallis fulva, Hibiscus spp., Hordeum spp. (e.g. Hordeum vulgare), Ipomoea batatas, Juglans spp., Lactuca sativa, Lathyrus spp., Lens culinaris, Linum usitatissimum, Litchi chinensis, Lotus spp., Luffa acutangula, Lupinus spp., Luzula sylvatica, Lycopersicon spp. (e.g. Lycopersicon esculentum, Lycopersicon lycopersicum, Lycopersicon pyriforme), Macrotyloma spp., Malus spp., Malpighia emarginata, Mammea americana, Mangifera indica, Manihot spp., Manilkara zapota, Medicago sativa, Melilotus spp., Mentha spp., Miscanthus sinensis, Momordica spp., Morus nigra, Musa spp., Nicotiana spp., Olea spp., Opuntia spp., Ornithopus spp., Oryza spp. (e.g. Oryza sativa, Oryza latifolia), Panicum miliaceum, Panicum virgatum, Passiflora edulis, Pastinaca sativa, Pennisetum sp., Persea spp., Petroselinum crispum, Phalaris arundinacea, Phaseolus spp., Phleum pratense, Phoenix spp., Phragmites australis, Physalis spp., Pinus spp., Pistacia vera, Pisum spp., Poa spp., Populus spp., Prosopis spp., Prunus spp., Psidium spp., Punica granatum, Pyrus communis, Quercus spp., Raphanus sativus, Rheum rhabarbarum, Ribes spp., Ricinus communis, Rubus spp., Saccharum spp., Salix sp., Sambucus spp., Secale cereale, Sesamum spp., Sinapis sp., Solanum spp. (e.g. Solanum tuberosum, Solanum integrifolium or Solanum lycopersicum), Sorghum bicolor, Spinacia spp., Syzygium spp., Tagetes spp., Tamarindus indica, Theobroma cacao, Trifolium spp., Tripsacum dactyloides, Triticosecale rimpaui, Triticum spp. (e.g. Triticum aestivum, Triticum durum, Triticum turgidum, Triticum hybernum, Triticum macha, Triticum sativum, Triticum monococcum or Triticum vulgare), Tropaeolum minus, Tropaeolum majus, Vaccinium spp., Vicia spp., Vigna spp., Viola odorata, Vitis spp., Zea mays, Zizania palustris, Ziziphus spp., amongst others.
The embodiments may be used for transformation of any plant species, including, but not limited to, monocots and dicots. Examples of plants of interest include, but are not limited to, corn (Zea mays), Brassica sp. (e.g., B. napus, B. rapa, B. juncea), particularly those Brassica species useful as sources of seed oil, alfalfa (Medicago sativa), rice (Oryza sativa), rye (Secale cereale), sorghum (Sorghum bicolor, Sorghum vulgare), millet (e.g., pearl millet (Pennisetum glaucum), proso millet (Panicum miliaceum), foxtail millet (Setaria italica), finger millet (Eleusine coracana)), sunflower (Helianthus annuus), safflower (Carthamus tinctorius), wheat (Triticum aestivum), soybean (Glycine max), tobacco (Nicotiana tabacum), potato (Solanum tuberosum), peanuts (Arachis hypogaea), cotton (Gossypium barbadense, Gossypium hirsutum), sweet potato (Ipomoea batatus), cassava (Manihot esculenta), coffee (Coffea spp.), coconut (Cocos nucifera), pineapple (Ananas comosus), citrus trees (Citrus spp.), cocoa (Theobroma cacao), tea (Camellia sinensis), banana (Musa spp.), avocado (Persea americana), fig (Ficus casica), guava (Psidium guajava), mango (Mangifera indica), olive (Olea europaea), papaya (Carica papaya), cashew (Anacardium occidentale), macadamia (Macadamia integrifolia), almond (Prunus amygdalus), sugar beets (Beta vulgaris), sugarcane (Saccharum spp.), oats, barley, vegetables, ornamentals, and conifers.
Vegetables include tomatoes (Lycopersicon esculentum), lettuce (e.g., Lactuca sativa), green beans (Phaseolus vulgaris), lima beans (Phaseolus limensis), peas (Lathyrus spp.), and members of the genus Cucumis such as cucumber (C. sativus), cantaloupe (C. cantalupensis), and musk melon (C. melo). Ornamentals include azalea (Rhododendron spp.), hydrangea (Macrophylla hydrangea), hibiscus (Hibiscus rosasanensis), roses (Rosa spp.), tulips (Tulipa spp.), daffodils (Narcissus spp.), petunias (Petunia hybrida), carnation (Dianthus caryophyllus), poinsettia (Euphorbia pulcherrima), and chrysanthemum. Conifers that may be employed in practicing the embodiments include, for example, pines such as loblolly pine (Pinus taeda), slash pine (Pinus elliotii), ponderosa pine (Pinus ponderosa), lodgepole pine (Pinus contorta), and Monterey pine (Pinus radiata); Douglas-fir (Pseudotsuga menziesii); Western hemlock (Tsuga canadensis); Sitka spruce (Picea glauca); redwood (Sequoia sempervirens); true firs such as silver fir (Abies amabilis) and balsam fir (Abies balsamea); and cedars such as Western red cedar (Thuja plicata) and Alaska yellow-cedar (Chamaecyparis nootkatensis). Plants of the embodiments include crop plants (for example, corn, alfalfa, sunflower, Brassica, soybean, cotton, safflower, peanut, sorghum, wheat, millet, tobacco, etc.), such as corn and soybean plants.
Turfgrasses include, but are not limited to: annual bluegrass (Poa annua); annual ryegrass (Lolium multiflorum); Canada bluegrass (Poa compressa); Chewings fescue (Festuca rubra); colonial bentgrass (Agrostis tenuis); creeping bentgrass (Agrostis palustris); crested wheatgrass (Agropyron desertorum); fairway wheatgrass (Agropyron cristatum); hard fescue (Festuca longifolia); Kentucky bluegrass (Poa pratensis); orchardgrass (Dactylis glomerate); perennial ryegrass (Lolium perenne); red fescue (Festuca rubra); redtop (Agrostis alba); rough bluegrass (Poa trivialis); sheep fescue (Festuca ovine); smooth bromegrass (Bromus inermis); tall fescue (Festuca arundinacea); timothy (Phleum pretense); velvet bentgrass (Agrostis canine); weeping alkaligrass (Puccinellia distans); western wheatgrass (Agropyron smithii); Bermuda grass (Cynodon spp.); St. Augustine grass (Stenotaphrum secundatum); zoysia grass (Zoysia spp.); Bahia grass (Paspalum notatum); carpet grass (Axonopus affinis); centipede grass (Eremochloa ophiuroides); kikuyu grass (Pennisetum clandesinum); seashore paspalum (Paspalum vaginatum); blue gramma (Bouteloua gracilis); buffalo grass (Buchloe dactyloids); sideoats gramma (Bouteloua curtipendula).
Plants of interest include grain plants that provide seeds of interest, oil-seed plants, and leguminous plants. Seeds of interest include grain seeds, such as corn, wheat, barley, rice, sorghum, rye, millet, etc. Oil-seed plants include cotton, soybean, safflower, sunflower, Brassica, maize, alfalfa, palm, coconut, flax, castor, olive etc. Leguminous plants include beans and peas. Beans include guar, locust bean, fenugreek, soybean, garden beans, cowpea, mungbean, lima bean, fava bean, lentils, chickpea, etc.
The compositions and methods of the subject invention can be used to reduce damage caused by a wide range of pests.
Examples of the classification of pests include Lepidoptera (for example, Plutellidae, Noctuidae, Pyralidae, Tortricidae, Lyonetiidae, Carposinidae, Gelechiidae, Crambidae, Arctiidae, and Lymantriidae), Hemiptera (for example, Cicadellidae, Delphacidae, Psyllidae, Aphididae, Aleyrodidae, Orthezidae, Miridae, Tingidae, Pentatomidae, and Lygaiedae), Coleoptera (for example, Scarabaeidae, Elateridae, Coccinellidae, Cerambycidae, Chrysomelidae, and Curculionidae), Diptera (for example, Muscidae, Calliphoridae, Sarcophagidae, Anthomyiidae, Tephritidae, Opomyzoidea, and Carnoidea), Orthoptera (for example, Acrididae, Catantopidae, and Pyrgomorphidae), Thysanoptera (for example, Thripidae, Aeolothripidae, and Merothripidae), Tylenchida (for example, Aphelenchoididae and Neotylechidae), Collembola (for example, Onychiurus and Isotomidae), Acarina (for example, Tetranychidae, Dermanyssidae, Acaridae, and Sarcoptidae), Stylommatophora (for example, Philomycidae and Bradybaenidae), Ascaridida (for example, Ascaridida and Anisakidae), Opisthorchiida, Strigeidida, Blattodea (for example, Blaberidae, Cryptocercidae, and Panesthiidae) and Thysanura (for example, Lepismatidae, Lepidotrichidae, and Nicoletiidae).
Examples of the pests belonging to Lepidoptera include Chilo suppressalis Walker, Cnaphalocrocis medinalis, Parnara guttata, Sesamia inferens, Mythimna separata, Naranga aenescens Moore, Spodoptera litura, Etiella zinckenella, Etiella behrii, Matsumuraeses falcana, Leguminivora glycinivorella, Pleuroptya naafis, Agrotis segetum, Agrotis ipsilon, Helcystogramma triannulellum, Xestia c-nigrum, Helicoverpa assulta, Helicoverpa armigera, Mamestra brassicae, Spodoptera exigua, Plutella xylostella, Pieris rapae, Pieris brassicae, Hellulla undalis, and Autographa nigrisigna.
Examples of the pests belonging to Hemiptera include Nilaparvata lugens, Sogatella furcifera, Laodelphax stratella, Nephotettix cincticeps, Recilia dorsalis, Stenotus rubrovittatus, Trigonotylus caelestialium, Leptocorisa chinensis, Nezara antennata, Nezara viridula, Lagynotomus elongatus, Scotinophara lurida, Eysarcoris annamita, Eysarcoris lewisi, Eysarcoris ventralis, Togo hemipterus Scott, Cletus punctiger, Piezodorus hybneri, Halyomorpha halys, Dolycoris baccarum, Neotoxoptera formosana, Rhopalosiphum padi, Rhopalosiphum maidis, and Aphis glycines.
Examples of the pests belonging to Coleoptera include rice Lissorhoptrus oryzophilus, Oulema oryzae, Echinocnemus squameus, Melanotus legatus, Melanotus fortnumi, Anomala cuprea, Popillia japonica, Maladera castanea, Epilachna varivestis, Paraluperodes nigrobilineatus, Epilachna vigintioctomaculata, Henosepilachna vigintioctopunctata, Harmonia axyridis, Anomala rufocuprea, Anomala testaceipes, Aulacophora indica, and Phyllotreta striolata.
Examples of the pests belonging to Diptera include Chlorops oryzae, Hydrellia griseola, Sitodiplosis mosellana, Delia platura, Asphondylia yushimai, Melanagromyza sojae, Liriomyza trifolii, Liriomyza sativae, Liriomyza huidobrensis, and Liriomyza bryoniae.
Examples of the pests belonging to Orthoptera include Oxya yezoensis and Oxya japonica. Examples of the pests belonging to Thysanoptera include Stenchaetothrips biformis and Thrips palmi. Examples of the pests belonging to Tylenchida include Meloidogyne, Nematoda, and Heterodera. Examples of the pests belonging to Collembola include Onchiurus psuedamatus yagii and Onychiurus matsumotoi. Examples of the pests belonging to Acarina include Penthaleus major, Tetranychus urticae, Tetranychus kanzawai, Tyrophagus putrescentiae, and Tarsonemus bilobatus. Examples of the pests belonging to Stylommatophora include Helix and Philomycidae. Examples of the pests belonging to Ascaridida include Ascaris lumbricoide. Examples of the pests belonging to Opisthorchiida include Metagonimus yokogawai. Examples of the pests belonging to Strigeidida include Schistosoma japonicum. Examples of the pests belonging to Blattodea include Blattella germanica, Periplaneta fuliginosa, Periplaneta americana, and Blatta lateralis. Examples of the pests belonging to Thysanura include Ctenolepisma and Lepisma.
In view of the technical features of the present invention and the technical common knowledge in this field, the coverage of the present invention (more specifically the pests to which the pest control method of the present invention is applicable) is wide. On the other hand, as shown in the below-described examples, the efficacy or effectiveness of the present invention was confirmed by the experiments on Henosepilachna vigintioctopunctata and Harmonia axyridis belonging to Coleoptera: Coccinellidae, Oxya yezoensis belonging to Orthoptera: Catantopidae, Helicoverpa armigera belonging to Lepidoptera: Noctuidae, and Blatta lateralis belonging to Blattodea: Blattidae as test insects. In consideration of the fact, though there is no intention to limit the coverage of the present invention, the present invention is preferably applied to the insects belonging to Coleoptera, Orthoptera, Lepidoptera, or Blattodea, and more preferably to the insects belonging to Coleoptera: Coccinellidae, Orthoptera: Catantopidae, Lepidoptera: Noctuidae, or Blattodea: Blattidae. Specific examples of the insects belonging to Coleoptera: Coccinellidae include Henosepilachna vigintioctopunctata and Harmonia axyridis, and specific examples of the insects belonging to Orthoptera: Catantopidae include Oxya yezoensis. Specific examples of the insects belonging to Lepidoptera: Noctuidae include Helicoverpa armigera, and specific examples of the insects belonging to Blattodea: Blattidae include Blatta lateralis.
In an exemplary embodiment, guayule extract prevents formation of root galls caused by nematodes such as root knot and cyst nematodes.
Advantageously, unlike conventional pesticides that control pests by killing, the compositions provided herein can, in some embodiments, control pests by regulating a plants' own signaling pathways that are typically controlled by auxin and other hormones involved in plant tissues, production of saponins and other glycosides, as well as the increase in root hairs.
In certain embodiments, the subject invention protects attacks on plants that can be biotic or abiotic in nature. Non-limiting examples of biotic attacks include plant parasites, arthropods, animals, fungi, bacteria, nematodes, reptiles, mollusks, scorpions, and viruses. Abiotic attacks are caused by, for example, changes in physical environments that include, but are not limited to, temperature, salinity, light exposure, water quality, soil quality, and oxidation.
Exemplary trials have demonstrated that the guayule extract of the subject invention provides a basis for improving the control of cyst, root knot, and lesion nematodes.
Compositions provided herein can also, when applied at, for example, high doses, enhance the protection of dried plants from pests such as, for example, termites, wood borers, fungi, bacteria, and certain animal pests common to lumber, dried wood, dried roots, and dried fruits.
In one embodiment, the subject composition improves the health and productivity of plants undergoing water stress.
The composition of the subject invention can also be used to induce budding and/or flowering, including in marijuana plants.
In some embodiments, chemical barriers resulting from the genetic regulation achieved using the compositions and methods of the subject invention include, but are not limited to, antagonistic compounds such as phytoalexins, fumigating compounds, and compounds that can alter the taste, smell, and/or pheromone characteristics of the plant.
In certain embodiments, the genetic and/or hormonal regulations are effective In inhibiting a pest's ability to find, penetrate, and/or consume the target plant. Further, the subject compositions, comprising the subject extracts and, optionally, other naturally derived additives, can interfere with a pest's ability to find a mate.
In some embodiments, the exogenous attacks are abiotic in nature, originating from extreme physical conditions that include, but are not limited to, changes in temperature, light exposure, water, soil, and other factors affecting the target plant's growth.
In some embodiments, the compositions provided herein, either in a dry or in liquid formulation, are applied as a seed treatment or to the soil surface.
Preferred methods include applying the compositions provided herein to the soil surface without mechanical incorporation. The pesticidal effect of the soil application can then be activated by rainfall, sprinkler, flood, or drip irrigation, and subsequently delivered to the targeted pests in order to drive their population levels down to acceptable thresholds. In an exemplary embodiment, the compositions provided herein can be efficiently applied via a center pivot irrigation system or with a spray over the seed furrow.
Reference herein to administration of the composition “on or near” a pest or a plant or to the “environment” of a pest or plant means that the administration is such that the composition is sufficiently in contact with the pest or plant such that the desired result (e.g., killing the pest, increasing yield, preventing damage to the plant, regulating genes and/or hormones, etc.) is achieved.
Use of the term “comprising,” herein includes consisting essentially of” and “consisting of.” The term “consisting essentially of,” as used herein, limits the scope of the ingredients and steps to the specified materials or steps and those that do not materially affect the basic and novel characteristic(s) of the present invention, e.g., compositions and methods for promoting plant health via hormones and/or gene regulation and/or pest control.
Advantageously, the compositions provided herein using, for example, compositions extracted from desert shrubs of guayule plants, are cost-effective, especially when compared with synthetic counterparts. For example, based on current evidence and knowledge of efficacy and application rates, for a low concentration extract from guayule plants, worldwide control of cyst nematodes could be accomplished with several thousand acres of guayule production.
It should be understood that the examples and embodiments described herein are for illustrative purposes only and that various modifications or changes in light thereof will be suggested to persons skilled in the art and are to be included within the spirit and purview of this application.
In an exemplary embodiment, a method of extracting and packaging a composition for plant growth and defense treatment, as described herein, includes the following steps.
First, parts of the source plant such as roots or shoots are cleaned of excessive dirt by rinsing or by physical brushing, followed by a treatment with H2O2 to remove mold, if appropriate. The source plant's roots or shoots then are sized with shears to fit into a grinder, which grinds the plant parts into a powder. Alternatively, the plant parts are wet ground in one or more solvents such as water, ethanol, propanol, isopropanol, Quillaja saponaria extracts, or Yucca schidigera extracts. Then the powder can be stored in a sealed container and refrigerated.
To make a 10% plant extract solution, 10 g of dry root powder is added to 90 g of distilled water or other solvent as provided earlier in this Example. In certain embodiments, 50%, 40%, 25%, or 10% or less of the total solvent is non-water. Other concentrations can be made by adjusting the mass of the plant extracts to the total solvent volume. The plant extracts and the solvent mixture can be stored covered and refrigerated for 48 hours while being stirred every 4 to 6 hours. The mixture is then decanted and filtered through stacked paper filters (4 filters/stack).
In one embodiment, the extract is tested for one or more of the activities described herein. The web plant bagasse can be pressed to obtain additional plant extracts and filtered through stacked paper filters (4 filters/stack). The filtered solution, with, optionally, added antioxidant, is then placed in UV-protected bottles. It is preferable that the bottles are filled to the rim in order to exclude air in the packaging.
For commercial production methods of extract and processing have been developed for larger volumes of Guayule and other plant extracts without the use of hexanes or alcohols but rather through water processing.
One specific example of a production method is as follows:
Iso-Extract Production-Line Steps:
1. Root Harvest Timing: Root quality is sampled in the field, utilizing a horizontal sampling technique (e.g., every 5th row across and 20 feet vertically), providing 24 root samples over a 400Ft×480 Ft field. Samples can be collected, for example, in the months of February, May, August, and November, cleaned, ground, and sample extractions produced and tested for the presence and quantity of specified chemical markers. Root is harvested when chemical markers are present in the amounts specified for formulations. Medium size roots are cut and removed.
2. Root Harvest: The weight of dry root needed for a production run is calculated and the acreage for harvest is determined. The root is harvested with the tops of the plants first removed, and then the dry root is extracted and bundled. The total sampled root amount would be near 100 roots. (96) roots. Preferably plants are not destroyed for a sample. Harvested root is preferably stored in a shaded commodity barn until processed.
3. Preliminary Root Processing: Dry root from the field is first cleaned in a tumbler with a well water rinse. Well water is used for the rinse, filtered, and re-circulated, with the sediment material periodically removed and deposited in the surrounding fields.
4. Preliminary Sizing: The cleaned dry root is conveyored into a preliminary sizer-chipper, and sized to <1 inch lengths.
5. Wet Grind: The chipped—sized root is weighed and then fed into a wet mill via an auger. Microbial-free water is added to the auger and chipped root and ground to an average particle size of less than 1/16 inch to produce a pumpable slurry. Preferably, the particles pass through a ¼ inch, ⅛ inch or smaller screen size. The amount of water added can be, for example, from about 0.75 to 1.5 lbs of root per gallon of water. More preferably there is about 0.9 to about 1.25 lbs of root per gallon of water. Microbial-free RO water can be produced and stored on site.
The percentage of the extract as that term is used herein (e.g., 10% or 30%) refers to the weight of the plant part (e.g., root) as a percentage of the weight of the mixture of the plant part and the solvent (e.g., water) that is contacted with the plant part. The concentration may be, for example, 50%, 40%, 30%, 20%, 10% or less, and any percentage in between. Preferably, the concentration is about 30%. The volume of water metered into the grinder tank is slightly higher than the finished concentration sought. The volume of root chips is varied according to the crop age, date of harvest, moisture content, storage term, colorimeter test on extract, and other concentration measurement tools.
6. Transfer from Grinder to Press: The root-water slurry is pumped to a series of dwell tanks, and allowed to “sit” until a desired concentration of active components is achieved. The content of the composition can be evaluated using, for example, a GLC and mass-spectrometer. The concentration of the composition can also be determined based on colorimetry and/or specific gravity. When the proper composition of the Iso-Extract is achieved, the dwell tank(s) contents are pumped to a rotary press. The rotary press separates the Iso-Extracts solution from the bagasse, with the solution then pumped, filtered, and stored in a batch tank. The percentage of solids is preferably less than 5%, 4%, 3%, 2%, or 1%. The bagasse solids can be transferred out of the building and used in compost production. In preferred embodiments, solids larger than 16, 24, 32, 40, or 48 microns are removed. In further preferred embodiments, particles that do not fit through an ½ inch, ¼ inch or ⅛ inch screen are removed.
7. Batch Tank: The Iso-Extract solution can be again checked for concentration and composition using the GLC and mass-spectrometer. Should the solution concentration be too high, microbial-free RO water is added to the Iso-Extract solution to achieve the desired concentration. When the desired concentration is reached, 0.1% Sodium Benzoate by weight is added to the solution and the solution is then filtered and pumped through filtration into a series of storage tanks for use in the eventual production of formulations. The stored Iso-Extract composition and concentration can be periodically monitored to assure consistent maintenance of quality.
8. Production of Formulations and Bottling: Iso-Extract is pumped from the storage tanks, to a 2,500 gallon blending tank, where various additives are blended with the Iso-Extract, to produce specified formulations. Such additives, are weighed and manually added, the solution continually stirred, and then allowed to dwell as needed. The formulation's concentration and composition can be checked with a GLC and mass-spectrometer, and when correct, filtered and pumped to a filling station and placed in containers. Formulations can be shipped in tote-sized containers, or bottled (1 gallon and 2.5 gallon F-Style Jugs) with a rotary type, 16 head filler, capped, labeled, and cased. Cases are placed on a pallet, shrink wrapped, and either stored, or immediately shipped. The additives can be, for example, plant nutrients, organic and conventionally derived plant fertility products and sapponins (wetting agents).
10. Product Storage and Distribution: Package product is palleted and placed in inventory for sale. Bulk product is placed in 270 gallon totes. Depending on volume produced, the pallets/totes can be stored onsite, or transported to a separate warehouse for storage and shipping.
Trials were conducted using the compositions and methods provided herein. Advantageously, the results were better than fumigation with Telone II or Vapam.
The efficacy of the guayule extract on sugar beet cyst nematodes was demonstrated. Additionally, the same aqueous extract of the guayule roots was used to treat broccoli cyst nematodes. It, too, was successful in increasing the crop yield and suppressing the growth of cyst nematode. The guayule extract was also tested on root knot nematodes grown on tomatoes, carrots, and melons. Significant yields and reduction of the nematode population were observed.
Furthermore, guayule plants were direct-seeded on rows next to a test site. These rows were next to heavily infested tomato plants of that growing season. The root knot nematodes in this section were completely controlled.
Because of the Bt resistance buildup by corn root worms in the Midwest, this extract can be potentially useful for treating the 100 million acres of corn grown in the United States and beyond.
Additional experimental results have demonstrated effective control or parasitic nematodes such as cyst nematodes, Heterodear schactii, and Heterodera cruciferi in sugar beets and broccoli plants with positive benefits to crop yield, soil health, and recovery of beneficial nematodes. Advantageously, the beneficial nematode population was found to increase shortly after the application of the compositions of the subject invention.
In an exemplary embodiment, a composition for regulating a target plant's genes and/or hormones comprises one or more of the following: acetic acid, abscisic acid, acc-synthases, acetovallinones, argentatins, brassinoles, caffeic acid, campesterol, camphene, carvacrol, ciscinnamic acid, trans-cinnamic acid, cholorgenic acid, d-limonene, eugenol, galactooligosaccharide, gemional, guaiacol, guayulins, gibberellic acids, indole, inulins, lignins, iodine, jasmonic acid, jasmonates, kaempferol, kaempferol 3 methyl ether, kaempferol 2-glycoside, kinetin, limonene, linoleic acid, linolenic acid, lupenes, melavonic acid, myrcene, naringenin, oleic acid, palmitic acid, p-anISIC acid, pinenes, pulegones, qualyins, quercetagetin, quercetins, quinic acid, saponins, salicylic acid, sanquarinine, stearic acid, thymol, trehalose 6-phosphate (Tre6P), terpenes, tri-terpenois, turpines, vanillins, and zeatin. 3,4-dihydroxyhydrocinnamic acid, 3-hydropropionic acid along with latex/rubber transferase enzymes such as cysteine protease, aspartate protease, histidine protease and one or more other proteases derived from Guayule parenchyma cell latex and rubber. Reference here to these enzymes includes the induction of these enzymes (or other enzymes) in the plant as consequence of applying the subject composition).
The composition preferably contains at least 5, 10, 15, 20, 25 or all 30 of these compounds.
Control of cyst nematode was comparable to standard fumigation and other contact nematicides.
Objective: Evaluate nematicides for sugarbeet cyst nematode control and subsequent growth of sugarbeets
Type: Cyst Nematode Control
Crop: Sugar Beets
Variety: Phoenix, Coronado, Baja, Cortez, SV2013, SV2015, Beta 4521R, Beta 4430R, Beta 8520, and Beta 8617.
Plot Design: Randomized Block
Plot Size: 25′Long×3.3′Wide
Replicates: 6
Soil Type: Sandy Loam
Soil Notes: Desert Sand
Irrigation Method: Drip Irrigation
Major Event Dates:
Application Information:
The varieties tested were: Phoenix, Coronado, Baja, Cortez, SV2013, SV2015, Beta 4521R, Beta 4430R, Beta 8520, and Beta 8617.
The trial was harvested on April 22.
Beets were hand dug from each replicate and analyzed. For analysis, the pounds per sugarbeet determined from the Spreckels laboratory data for Clean Beets was converted to tons/acre based on a 40 inch row spacing and a 5 inch spacing in the row between sugarbeets. Nematode samples were taken from each replicate, and analyzed for juveniles of sugarbeet cyst nematode.
ISO-EXTRACT GU 30% (GU7812) gave the greatest reduction in Cyst Nematode and nearly the highest increase in Sugar Beet yield. The yield was higher than the Telone II fumigation standard. (See
Each figure is the mean of 6 replicates.
Means not followed by the same letter are significantly different from each other according to Fisher's Protected Least Significant Difference Test at P=0.05 or 0.10
Each figure is the mean of 6 replicates.
Means not followed by the same letter are significantly different from each other according to Fisher's Protected Least Significant Difference Test at P=0.05 or 0.10.
In this trial the pressure of Cyst Nematode was made extremely high by growing susceptible crops as hosts in rotation during winter month for over 30 years.
Objective: Evaluate nematicides for sugarbeet cyst nematode control and subsequent growth of sugarbeets
Type: Nematode Control
Location: Irvine, Calif.
Crop: Sugar Beets
Variety: Phoenix (Susceptible)
Plot Design: Randomized Block
Plot Size: 10′×2.5′
Replicates: 5
Soil Type: Sandy Loam
Irrigation Method: Overhead Sprinklers followed by Drip Irrigation one month after established crop.
Major Event Dates:
Harvest Date: October 29
Evaluation Methods: At harvest, 5 plants from each replicate were harvested and weighed. First sample taken at untreated preplant to establish presence of population. All replicates sampled at harvest, 12, 1 inch (2.5 cm) diameter cores per replicate to a 12 inch (30 cm) depth.
Application Notes: Applications were made as band applications over the top of the seed line in a 1 ft. band over center 2.5 ft. bed.
Statistical Analysis: Analysis of Variance (ANOVA) followed by Fisher's Least Significant Difference Test.
Summary and Discussion:
The soil had been maintained to be highly infested with Cyst Nematode adults, larvae and eggs. The ISO EXTRACT GU 10% was applied at 1 pt/Acre and 3 pts/Acre to determine a dose response difference compared to the standard Telone II fumigation, other chemical nematicides and the untreated check.
Additionally, a combination of ISO EXTRACT GU 10% with a new wetting agent (LM 2015) was introduced. ISO EXTRACT GU 10% @3 pts/Acre, alone, performed very well and was comparable to the GU 30% formulation @1 pint/Acre in earlier trials. The GU 10% @1 pt/Acre was ⅓ less the amount of active molecules and was not sufficient for yield or nematode control.
In combination with the new wetting agent (LM 2015), there was a marked increase in yield even with GU 10% @ only 1 pt/Acre. The combination of ISO EXTRACT GU 10% @ a 1 pt/Acre+the wetting agent was comparable to GU 10% @3 pts/Acre for reducing Cyst Nematode and increasing yield. See also
The Root Knot nematode is enhanced to grow during the mild winter on a susceptible crop to keep an artificially high level of eggs and juvenile larvae for testing.
Type: Nematode Control
Location: Irvine
Crop: Carrot
Variety: Imperator
Plot Design: Randomized Block
Plot Size: 20′×2.5′
Replicates: 5
Soil Type: Sandy Loam
Irrigation Method: Drip Irrigation
Major Event Dates:
Application Information:
The enzymatic activity against one single molt of Citrus nematode Tylenchulus semipenetrans placed in sand in a perforated container and placed in soil to determine efficacy of such enzyme on naked proteinaceous skin juvenile nematode stage during a 7 day molting period.
Application Information:
Notably all doses were effective and worked well on the portion of population during molt. See
Efficacy was statistically significant for nymphs of Leafhoppers as well as Adults and Nymphs of WF Thrips.
Objective: To determine efficacy of ISO Extract GU 10% on Wine Grape Leafhopper & Western Flower Thrips.
Type: Leafhopper Control
Location: Lodi, Calif., USA
Crop: Wine Grape
Variety: Old Vine Zinfandel
Plot Design: Randomized Block
Plot Size: Three Vines
Replicates: 6 Replicates per treatment or untreated check, 5×6 Reps=30×3 Vine reps
Soil Type: Sandy Loam—Hanford Sand Steep
Soil Notes: 0-2% Slope &>0.1% OM
Irrigation Method: Drip Irrigation @0.5 GPH on 12 hr run cycle
Major Event Dates:
Application Information:
Application Method: Backpack Airblast Sprayer @15 liters per treatment calculated to spray 100 GPA
Notes Rate of App: Post-Harvest Application, Grower let the leaf pests go after harvest so Leaf hopper and Thrips increase sharply.
Maintenance App: Powdery Mildew Sprays in season, but not after harvest.
Harvest Date: August 26th. No pesticides were used 10 days before harvest, or anytime after harvest in this vineyard.
Evaluation Methods: In field visual comparisons were made between the Untreated Check and 4 Treatments to determine overall damage and population density by counting removing 5 leaves per plot/placing in a paper bag and evaluating the leaves within an hour with a dissecting scope. Counts were made of presence of young motile Grape Leafhoppers; adults and young motiles of Western Flower Thrip, too.
Statistical Analysis: ARM Program Version 8.0 (last version Apr. 21, 2013) Duncans' Multiple Range Test, (p=0.05)
Results and Discussion: The active ingredients of this ISO Extract have a dramatic impact, as demonstrated in this trial for knockdown activity, on molting insect pests. See
Grape Leafhopper and Western Flower Thrips are two of the most significant pests in grapes annually. The evaluation was done by a researcher of nearly 40 years in Vineyard Management. The ISO extract not only affected the grape insects when molting, but appeared safe to adult foraging bees and wasps. Following a heavy rainfall and frost right after the first evaluation, the product appeared, by the observation of the Researcher, to hold frost injury of the vines for several days or a week long.
Objective: To determine efficacy of ISO Extract GQB 23% on Wine Grape Leafhopper & other soft bodied pests.
Type: Leafhopper Control
Crop: Wine Grape
Variety: Syrah
Plot Design: Randomized Block
Plot Size: 12′×2.5′,
Replicates: 8 Replicated Single Grape Vines per treatment or untreated check
Soil Type: Silty Loam
Soil Notes: Soil was moderately moist, but drier than normal.
Irrigation Method: Drip Irrigation
Major Event Dates:
Application Information:
ISO EXTRACT 10% (Guayule Root Extract 10%) increased shoot lengths, root lengths, root surface area, and lateral root tips.
Objective: To determine the effects of the extracts on field corn
Type: PGR Study
Crop: Hybrid Field Corn
Variety: 32B10
Plot Design: Randomized Block
Plot Size: 8″ Black Plastic Pot
Replicates: 12 for 15 Treatments and Untreated Check
Soil Type: Medium-Fine grain Sand & Potting Mix
Soil Notes:
Irrigation Method: Hand watered using a watering can or sprinkler head hose attachment
Major Event Dates:
Application Information:
The results were favorable as can be seen in
Objective: Plant and root growth
Type: BioStimulant PGR Trial
Crop: Cotton
Variety: DP1216B2RF
Plot Design: 12 treatments & an Untreated Check, 12 reps/treatment
Plot Size: greenhouse 18 oz. plots
Replicates: 12 Replicates per treatment
Soil Type: Sand
Soil Notes:
Irrigation Method: Micro sprinkler Irrigation
Major Event Dates:
Application Information:
Yucca 50%
Yucca 50%
Yucca 50%
Yucca + Quillaya
Application Method: Applied as a drench 10 mls per treatment.
Evaluation Date: Seven days after treatment and 14 days after treatment
Evaluation Methods: Planted into sand, 18 ounce pots. Sand was the growing media with a half inch soil for seed germination. Irrigation was applied through micro sprinklers 14 GPH for a total of 5 minutes per day. The first evaluation took place fourteen days after treatment and the second evaluation took place 21 days after treatment. Plant nutrition—liquid 12-4-8, 20 mls/week (sand media)
Statistical Analysis: ARM Program Version 8.0 (last version Apr. 21, 2013) Duncans' Multiple Range Test
Objective: Blooms/buds, plant and root growth
Crop: Commercial Vinca
Variety: Hybrid
Plot Design: 5 treatments & an Untreated Check Total 6 treatments
Plot Size: greenhouse 1 gallon plots
Replicates: 12 Replicates per treatment
Soil Type: Sand
Irrigation Method: Micro sprinkler Irrigation 14 GPH
Major Event Dates:
Application Information:
Application Method: Applied as a Foliar spray Treatments 1-4. Treatments 5 and 6 Foliar spray plus Root drench, treatments, 10 mls per plant of these two treatments.
Evaluation Methods: Transplanted into sand, 1 gallon pots. Sand was the growing media with a 0.24 of soil for seed germination. Irrigation was applied through micro sprinklers 14 GPH for a total of 5 minutes per day. The first evaluation took place fourteen days after treatment and the second evaluation took place 21 days after treatment. Plant nutrition—liquid 12-4-8, 20 mls/week (sand media)
Application Notes: Foliar Spray treatment/Root Drench Vinca
Statistical Analysis: ARM Program Version 8.0 (last version Apr. 21, 2013) Duncans' Multiple Range Test
Summary and Discussion:
Seed treatment rates of ISO EXTRACT 10% can be done at, for example, 0.5 oz, 1 oz, 2 oz, or 3 oz/100 lbs of seed. Drench treatments can be done at, for example, 1, 2 or 3 mls of ISO EXTRACT 10% over the planted seed or, in the case of peppers and tomatoes, drench on the roots. Significant increases in root development and shoot development, as well as fresh and dry weight or roots, shoots and or whole plants have occurred. Vinca plants were treated with a foliar treatment of 1, 2 or 3 mls/Liter of water (1000, 2000 or 3000 ppm vol/vol. solution). Foliar and soil applications were done at the same time on two treatments. Plant hormone and sugar pathways are different in the root system and in the upper part of the plant. More auxins in the top and more cytokinins in the roots as a simple example of hormone differences, as well as movement of sugars during vegetative stages vs when the fruit sinks are growing in the top part of the plant. On the Vinca the combination of 1000 ppm applied twice to the tops and 1000 ppm applied twice to the roots on the same days (1st day and 2 weeks later), then evaluated once 2 weeks after the second application. This tells us something about potential use of the product in the field for fruiting vegetables and trees, soybean pods, corn kernels and ornamental plants that flower. Where we did 1000, 2000 or 3000 ppm applications foliar twice, the classic dose response of a typical Plant Growth Regulator or BioStimulant was achieved, e.g., increase in flowers was 28%, 85% and 36% showing the typical increase than decrease but still better than untreated. This is known as the triple effect. Coupling this response with soil applications, which increase the effectiveness of the roots system at the same time as tops achieves 200%+ when soil and top applications are combined. Rates can be reduced if desired when treating soil and tops combined.
The favorable results can be seen in
The trial demonstrated the potential with proper timing on Corn plant at V-3, V-5 & Tassel to increase yield and size of kernels without loss of corn cobb size.
Objective: Determine the impact of 1 & 2 pts/Acre applications in season on Sweet Corn
Type: Plant BioStimulant/Plant Growth Regulator (Sweet Corn Production)
Crop: Sweet Corn
Variety: 3674
Plot Design: Randomized Block
Plot Size: 30′×66′
Replicates: 6
Soil Notes: Soil Moisture was good throughout growing season
Irrigation Method: Furrow/Surface Irrigation
Major Event Dates:
Application Information:
Application Method: CO2 Backpack Sprayer @40 psi calculated to spray 40 Gallons per Acre.
Notes Rate of Appl: No adverse effects (phytotoxic) noted from applications of ISO EXTRACT GU 10%
Harvest Date: October 10
Evaluation Methods: Hand Harvested Total Plot Area, Measurement Girth, Length and Individual Weight of Ears
Statistical Analysis: ARM Program Version 8.0 (last version Apr. 21, 2013) Duncans' Multiple Range Test
Results & Discussion Trial was conducted in the Northern San Joaquin Valley Sweet Corn growing region of California. ISO EXTRACT GU 10% was effective at increasing both total yield and Girth of the Ears of Corn, which increased the weight in addition to more ears per plot. The application timing was convenient and fit in with cultural practices with sprays for herbicides and insecticides & miticides.
Advantageously, these aforementioned components are naturally derived from one or more plants and together serve to regulate the target plant's growth and defense mechanism, improve the plant's anti-oxidative effects, and control the transportation of plant hormones. See
All patents, patent applications, provisional applications, and publications referred to or cited herein are incorporated by reference in their entirety, including all figures and tables, to the extent they are not inconsistent with the explicit teachings of this specification.
It should be understood that the examples and embodiments described herein are for illustrative purposes only and that various modifications or changes in light thereof will be suggested to persons skilled in the art and are to be included within the spirit and purview of this application.
This application is a continuation application of co-pending U.S. application Ser. No. 15/518,414, filed Apr. 11, 2017; which is a National Stage Application of International Application No. PCT/US2016/046378, filed Aug. 10, 2016; which claims the benefit of U.S. provisional application Ser. No. 62/202,998, filed Aug. 10, 2015, all of which are incorporated herein by reference in their entirety.
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| 20200120888 A1 | Apr 2020 | US |
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| 62202998 | Aug 2015 | US |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 15518414 | US | |
| Child | 16707149 | US |
