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CN113558064B - Defoliating agent - Google Patents

Defoliating agent Download PDF

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Publication number
CN113558064B
CN113558064B CN202010669783.8A CN202010669783A CN113558064B CN 113558064 B CN113558064 B CN 113558064B CN 202010669783 A CN202010669783 A CN 202010669783A CN 113558064 B CN113558064 B CN 113558064B
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Prior art keywords
compound
cotton
weight ratio
composition
defoliant
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CN113558064A (en
Inventor
罗昌炎
詹姆斯.T.布里斯托
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Jiangsu Rotam Chemical Co Ltd
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Jiangsu Rotam Chemical Co Ltd
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N53/00—Biocides, pest repellants or attractants, or plant growth regulators containing cyclopropane carboxylic acids or derivatives thereof
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G13/00—Protection of plants
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
    • A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
    • A01N37/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof
    • A01N37/22—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof the nitrogen atom being directly attached to an aromatic ring system, e.g. anilides
    • A01N37/24—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof the nitrogen atom being directly attached to an aromatic ring system, e.g. anilides containing at least one oxygen or sulfur atom being directly attached to the same aromatic ring system
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
    • A01N43/707—1,2,3- or 1,2,4-triazines; Hydrogenated 1,2,3- or 1,2,4-triazines
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
    • A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
    • A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
    • A01N47/30—Derivatives containing the group >N—CO—N aryl or >N—CS—N—aryl
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
    • A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
    • A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
    • A01N47/36—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< directly attached to at least one heterocyclic ring; Thio analogues thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Environmental Sciences (AREA)
  • Dentistry (AREA)
  • Engineering & Computer Science (AREA)
  • Plant Pathology (AREA)
  • Pest Control & Pesticides (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Agronomy & Crop Science (AREA)
  • Toxicology (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

A composition comprising a compound (a) cyclopropionamide and a compound (B), wherein compound (B) is selected from one of the following compounds: diuron, phetamine, metribuzin or buthiuron; the weight ratio of the compound (A) to the compound (B) is 100:1-1:100, preferably 50:1-1:50. The composition is suitable for use as a plant defoliant; is especially suitable for defoliating agent of cotton and capsicum plants.

Description

Defoliating agent
Technical Field
The invention relates to a defoliating agent; belongs to the technical field of plant defoliation; the invention also relates to methods of plant treatment and defoliation by applying an effective amount of a defoliating agent to defoliate plants.
Background
Harvesting is an important link in cotton production. Mechanical harvesting is a future development. Mechanical harvesting requires high defoliation rate and boll opening of cotton. Leaves that remain on cotton plants affect not only the speed of harvesting (especially mechanical harvesting), but also the grade of cotton.
Defoliants are commonly used to control plant growth and are applied to cotton plants for the purpose of defoliating the leaves prior to harvesting the cotton. When harvesting cotton, defoliants are often applied to the cotton plant to cause the leaves to fall off without causing side effects to the bolls. By this method, cotton can be collected by machine, and the pollution of the cotton by the leaves on the plants is avoided.
Due to the ever increasing requirements of modern defoliants in terms of economy and ecology, for example with regard to efficacy, application rate, residue, toxicity. There is therefore a long felt need to develop new defoliants by combining known active ingredients.
Disclosure of Invention
The present invention has unexpectedly found that the combination of compound (a) cyclopropionamide with compound (B) selected from at least one of diuron, phetamine, oxazin or buthiuron shows a synergistic effect in a particularly advantageous manner.
Accordingly, the present invention provides a composition comprising a cyclic propionic acid amide comprising compound (a) and compound (B), wherein compound (B) is selected from one of the following compounds: diuron, phetamine, metribuzin or buthiuron; the weight ratio of the compound (A) to the compound (B) is 100:1-1:100, preferably 50:1-1:50.
The weight ratio of the compound (B) to the compound (A) is preferably 10:1-1:10, more preferably 5:1-1:5.
The compound (B) is selected from the aminopeptidase, and the weight ratio of the compound (A) to the compound (B) is preferably 30:1-1:30; more preferably 20:1 to 1:20, and still more preferably 10:1 to 1:10.
The compound (B) is selected from oxaziclomefone or oxaziclomefone, and the weight ratio of the compound (A) to the compound (B) is preferably 10:1-1:10, more preferably 5:1-1:5.
The weight ratio of the compound (B) to the compound (A) is preferably 30:1-1:30; more preferably 30:1 to 1:10, still more preferably 20:1 to 1:1, still more preferably 10:1 to 1:1.
The compositions of the invention are particularly suitable for defoliating plants. For example, in plant defoliation, a rapid action and/or an increased defoliation rate or lower application rate is exhibited.
The simultaneous (i.e. combined or separate) administration of compound (a) and compound (B) or the sequential administration of compound (a) and compound (B) gives higher defoliation rates than possible with each individual compound. This unexpected effect is a true synergistic effect, not just the addition of the activities.
The present invention therefore provides the use of the composition as defoliant. That is, leaf shedding is caused in plants. The composition of the invention is suitable for being used as defoliating agent for plants such as trees, fruit trees, vegetables and the like. Is especially suitable for defoliation of cotton, capsicum, potato, sunflower, soybean, rape, sorghum and other plants.
Therefore, the invention also provides a defoliant. The defoliating agent is realized by adopting the following technical scheme:
a defoliant comprising a compound (a) cyclopropionamide and a compound (B) and a conventional formulation auxiliary (C); wherein the compound (B) is selected from one of the following compounds: diuron, phetamine, metribuzin or buthiuron; the weight ratio of the compound (A) to the compound (B) is 100:1-1:100, preferably 50:1-1:50.
The weight ratio of the compound (B) to the compound (A) is preferably 10:1-1:10, more preferably 5:1-1:5.
The compound (B) is selected from the aminopeptidase, and the weight ratio of the compound (A) to the compound (B) is preferably 30:1-1:30; more preferably 20:1 to 1:20, and still more preferably 10:1 to 1:10.
The compound (B) is selected from oxaziclomefone or oxaziclomefone, and the weight ratio of the compound (A) to the compound (B) is preferably 10:1-1:10, more preferably 5:1-1:5.
The weight ratio of the compound (B) to the compound (A) is preferably 30:1-1:30; more preferably 30:1 to 1:10, still more preferably 20:1 to 1:1, still more preferably 10:1 to 1:1.
The amount of the compound (A) to be applied of the cyclopropylamide is preferably from 1 to 1000g of a.i./ha, particularly preferably from 5 to 500g of a.i./ha.
The amount of compound (B) applied can vary within wide limits, depending on the active substance, and is generally between 1 and 5000 g a.i./ha.
The preferred application rate of diuron of the compound (B) is from 10 to 3000 g a.i./ha, particularly preferably from 50 to 1000g a.i./ha.
The preferred application rate of compound (B) aminopeptidase is from 100 to 5000 g a.i./ha, particularly preferred application rate is from 500 to 2000g a.i./ha.
The preferred application rate of the compound (B) metribuzin or metribuzin is from 1 to 1000g a.i./ha, particularly preferably from 5 to 500g a.i./ha.
The preferred application rate of the compound (B) tebuthiuron is from 10 to 500g a.i./ha, particularly preferably from 10 to 300 g a.i./ha.
The defoliants of the present invention may be in the form of conventional formulations. The preparation forms of the composition can be emulsifiable concentrates, water suspending agents, oil suspending agents, water dispersible granules, wettable powder, water soluble granules, water soluble liquid, suspending emulsion, aqueous emulsion, microcapsule suspending agents, dry suspending agents, ultra-low volume liquid, electrostatic oil agents and micro-granules.
The defoliant according to the present invention may be prepared by mixing the compound (a) and the compound (B) together with formulation auxiliaries.
The required formulation auxiliaries, such as liquid diluents, solid diluents, surfactants, such as emulsifiers or dispersants, and other additives, are likewise known.
Suitable liquid diluents include water or organic solvents. Such as butanol, cyclohexanone, vegetable oil, methyl oleate, propylene glycol, high boiling aromatic hydrocarbons, dimethyl sulfoxide, water, and the like.
Suitable solid diluents are talc, diatomaceous earth, magnesium aluminum silicate, activated clay, kaolin, clay, gypsum, bentonite, white carbon, light calcium carbonate, limestone, wood chips, corn starch, soluble starch, and the like.
The defoliant of the present invention further comprises an emulsifier and a dispersant. Emulsifiers and dispersants may promote more localized diffusion of the active ingredient to the surface of the plant leaf, thereby providing a higher degree of penetration or penetration into plant tissue.
Suitable emulsifiers may be anionic and/or non-ionic emulsifiers such as fatty alcohol polyoxyethylene ethers, alkyl powder polyoxyethylene ethers, alkanolamide polyoxyethylene ethers, fatty acid polyoxyethylene ethers, fatty amine polyoxyethylene ethers, vegetable oil polyoxyethylene ethers, alkylphenol polyoxyethylene ether formaldehyde condensates, alkyl glycosides, block polyethers, polyglyceryl ether fatty acid esters and the like, alkylaryl sulfonates, alkyl and alkenyl sulfonates, polyoxyethylene ether sulfate salts, polycyclic aromatic hydrocarbon sulfonate condensates, succinate sulfonates and the like.
Suitable dispersants may be alkyl naphthalene sulfonates, bis (alkyl) naphthalene sulfonate formaldehyde condensates, alkylphenol polyoxyethylene phosphates, alkylphenol polyoxyethylene ether formaldehyde condensate sulfates, alkylphenol polyoxyethylene ether phosphates, alkylphenol polyoxyethylene ethers, castor oil ethylene oxide adducts, ethylene oxide-propylene oxide block copolymers, alkylphenol polyoxyethylene ether formaldehyde condensates, octylphenol polyoxyethylene ether sulfates and methylcellulose. For example, sodium lignin sulfonate, calcium lignin sulfonate, sodium methyl naphthalene sulfonate formaldehyde condensate, sodium methylene naphthalene sulfonate, etc.
The defoliant according to the present invention comprises compound (a) and compound (B), which together account for 1% to 90%, preferably 10% to 80%, more preferably 10% to 60% by weight of the defoliant.
Other additional components, such as protective colloids, binders, adhesives, thickeners, antifreeze agents, defoamers, thixotropic agents, penetrating agents, stabilizers, sequestering agents, complex formers may also be present if appropriate.
Suitable thickeners are polysaccharides (e.g. xanthan gum, carboxymethyl cellulose), inorganic clays (organically modified or unmodified), polycarboxylates and silicates.
Suitable antifreeze agents are ethylene glycol, propylene glycol, urea and glycerol.
Suitable defoamers are polysiloxanes, long-chain alcohols and fatty acid salts.
Suitable binders are polyvinylpyrrolidone, polyvinyl acetate, polyvinyl alcohol, polyacrylates and cellulose ethers.
The defoliant of the present invention is useful for defoliating plants with rapid and/or higher defoliation effects and lower application rates.
The defoliating agent is used for defoliating plants. The defoliants of the present invention are useful for most plant types. Is especially suitable for use as defoliating agent for tree, fruit tree, vegetable, etc.
The defoliant of the present invention is particularly suitable for defoliating cotton, capsicum, potato, sunflower, soybean, canola, sorghum and the like. The defoliant of the present invention does not cause harm to potato underground tubers, soybean seeds, sunflower seeds, cotton fibers as harvest.
The defoliant of the present invention is applied at a time slightly advanced or retarded according to the weather conditions and the growth conditions of the crop, and is treated with the defoliant of the present invention at a time when the vegetative growth of the plant is completed and the plant is near the maturity.
The defoliating agent of the present invention is particularly effective in treating cotton plants prior to cotton picking to promote defoliation.
When the defoliating agent is used as a cotton defoliating agent, the compound (A) and the compound (B) obtain defoliation synergistic effect, so that when the defoliating agent is applied to cotton plants, leaves rapidly fall off from the plants, cleaner cotton velvet can be obtained, and pollution of cotton velvet by leaf fragments is reduced.
The defoliant of the present invention is preferably used in cotton defoliants when weather conditions are good. When spraying, uniform spraying is ensured as much as possible.
The invention also relates to methods of plant treatment and defoliation by applying an effective amount of a defoliating agent to defoliate plants.
The invention also provides a method of defoliating a plant comprising treating the plant with a composition or defoliating agent according to the invention. Preferably crop plants; especially cotton and pepper crops.
The invention also relates in particular to a method for treating defoliation of cotton plants or pepper plants.
The defoliants of the present invention are also useful for reducing plant regrowth. Preferably in a suitable crop of useful plants, such as cotton, sunflower, capsicum or potato. Particularly preferred is for reducing regrowth in cotton, pepper crops.
The defoliants of the present invention may be applied to plants by spraying or other known methods. The formulations are applied to plants mainly by spraying, in particular foliar spraying.
How appropriate, the formulation in commercial form is diluted with water and then applied to the plants in the usual manner at the time of application. Such as are customary in cotton cultivation, for example by spraying with an aircraft.
The compound (A) and the compound (B) in the defoliant show synergistic effect, and the dosage and the cost are reduced through the synergistic effect among different compounds.
The use of the composition according to the invention as defoliant, i.e. to cause leaf shedding in plants. When the composition is used as a defoliating agent for cotton, the defoliating agent can not only remove leaves with limited time and high efficiency, but also promote bolls to spit ahead of time, shorten the period of spitting, improve the cotton yield, relatively concentrate the spitting time of cotton and facilitate mechanized cotton picking. In addition, the combination of compound (a) and compound (B) significantly reduced the regrowth of crops, especially cotton and capsicum.
Detailed Description
Cotton defoliation field test
Test object: cotton variety: new land early 74.
Test agent: dissolving the raw materials of the compound A and the compound B into 10000 mug/ml mother liquor by using acetone respectively, and adding 0.5% sorbitan monooleate polyoxyethylene ether (TWEEN-80) into the mother liquor as a functional auxiliary agent. The mother solution is diluted into liquid medicine with different concentrations by 0.1 percent of water solution of sorbitan monooleate polyoxyethylene ether (TWEEN-80). Compound a was prepared from mother liquors of compound a and compound B: samples of different proportions of compound B.
3 test method:
3.1 Cell design
Area per test cell: 35 m is m 2 ；
Each treatment was repeated 4 times.
3.2 Method and time of administration
The common sprayer is used for uniformly spraying, cotton bolls are basically mature, and the cotton boll is applied once in the period of opening the cotton, and the water consumption is 50L/mu.
3.3 Investigation time, times and method
Each cell takes 3 representative points, each point selects 10 continuous plants to hang up, the number of green leaves is investigated by fixed-point fixed-plants, and the leaf shedding rate and the leaf shedding effect are calculated.
(1) The basal number was investigated before the drug and the green leaf number of each spot was investigated.
(2) The number of green leaves at each spot was investigated 10 days after the administration.
(3) 20 days after the administration, the number of green leaves at each spot was investigated.
The drug effect is calculated according to the following formula:
。
biological test example 1 combination of cyclopropionamide and diuron:
table 1:
the defoliation effect in table 1 shows that the combination of cyclopropionamide and diuron shows a synergistic effect of defoliation effect.
Bioassay test example 2 combination of cyclopropionic acid amide and cyclopeptidic acid:
table 2:
the defoliation effect in table 2 shows that the combination of cyclopropionamide and cyclopeptidic acid shows a synergistic effect of the defoliation effect.
Biological assay test example 3 combination of cyclopropionamide and metribuzin:
TABLE 3 Table 3
The defoliation effect in table 3 shows that the combination of cyclopropionamide and metribuzin shows a synergistic effect of the defoliation effect.
Biological test example 4 combination of cyclopropionamide and buthiuron:
TABLE 4 Table 4
The defoliation effect in table 4 shows that the combination of cyclopropionamide and buthiuron shows a synergistic effect of the defoliation effect.

Claims (9)

1. The composition is characterized in that the active components consist of a compound (A) cyclopropionamide and a compound (B), wherein the compound (B) is selected from diuron, and the weight ratio of the compound (A) to the compound (B) is 50:1-1:50.
2. The composition according to claim 1, wherein the weight ratio of the compound (a) to the compound (B) is 10:1 to 1:10.
3. The composition according to claim 1, wherein the weight ratio of the compound (a) to the compound (B) is 5:1 to 1:5.
4. The composition of claim 1, wherein the composition is formulated as an emulsifiable concentrate, an aqueous suspension, an oil suspension, a water dispersible granule, a wettable powder, a suspoemulsion, an aqueous emulsion, a microcapsule suspension.
5. Use of the composition of claim 1 for defoliation of cotton.
6. The defoliant is characterized in that the active components consist of a compound (A) cyclopropionamide, a compound (B) and a conventional preparation auxiliary agent (C), wherein the compound (B) is selected from diuron, and the weight ratio of the compound (A) to the compound (B) is 50:1-1:50.
7. The defoliant according to claim 6, wherein the weight ratio of the compound (a) to the compound (B) is 10:1-1:10.
8. The defoliant according to claim 6, wherein the weight ratio of compound (a) to compound (B) is 5:1-1:5.
9. A method of defoliating cotton, characterized in that cotton plants are treated with the composition of claim 1 or the defoliating agent of claim 6.
CN202010669783.8A 2020-04-29 2020-07-13 Defoliating agent Active CN113558064B (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6274535B1 (en) * 1999-03-12 2001-08-14 Hoechst Schering Agrevo Gmbh Defoliant

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6274535B1 (en) * 1999-03-12 2001-08-14 Hoechst Schering Agrevo Gmbh Defoliant

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