WO2020060246A1 - 용출 제어형 농약 입제 및 그의 제조방법 - Google Patents
용출 제어형 농약 입제 및 그의 제조방법 Download PDFInfo
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- WO2020060246A1 WO2020060246A1 PCT/KR2019/012177 KR2019012177W WO2020060246A1 WO 2020060246 A1 WO2020060246 A1 WO 2020060246A1 KR 2019012177 W KR2019012177 W KR 2019012177W WO 2020060246 A1 WO2020060246 A1 WO 2020060246A1
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- 0 CC(C(c1nccc(*)c1*C(Nc1nc(*)cc(*)n1)=O)OC(*O*)=O)F Chemical compound CC(C(c1nccc(*)c1*C(Nc1nc(*)cc(*)n1)=O)OC(*O*)=O)F 0.000 description 2
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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
- 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
- A01N25/08—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 solids as carriers or diluents
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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
- 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
- A01N25/12—Powders or granules
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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
- 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
- A01N25/24—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 ingredients to enhance the sticking of the active ingredients
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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
- 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
- A01N25/30—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 characterised by the surfactants
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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
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
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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
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
- A01N43/50—1,3-Diazoles; Hydrogenated 1,3-diazoles
Definitions
- the present invention relates to a dissolution-controlled pesticide formulation and a method for manufacturing the same.
- Control which is one of the most important tasks in cultivation management, can be divided into pests and weeds. In the control work, it is necessary to spray and use pesticides effective for pests and weeds in a timely manner throughout the cultivation period. Usually, a control system is formed by spraying and using it several times.
- the present inventors have a control method that can end the spraying and use of various pesticides that have been performed during the cultivation period only once, even when sowing or transplanting seedlings. It was thought to be the ideal way to save labor.
- a pesticide particle coated with a pesticide particle in a multi-layered film composed of a superabsorbent swellable material layer and an olefin polymer layer, and an alkaline material layer in Japanese Unexamined Patent Publication No. Hei 6-9304 , A coated pesticide granule in which a pesticide particle is coated with a multi-layered film composed of a mixture layer of an olefinic resin and an alkali-soluble polymer is disclosed.
- the coated pesticide granules were not able to completely suppress the dissolution of the active ingredient of the pesticide during the dissolution suppression period. That is, in the conventional agrochemical formulation, there was always a certain elution of some agrochemical active substances into the environment within a predetermined dissolution suppression period, or in other words, a leak of the agrochemical active components. Thus, when a large amount of the corresponding pesticide granules were used at the same time as sowing or transplanting the seedlings, growth disorders (weaknesses) occurred.
- the cultivation of the early stages of cultivation greatly affects the crops, as it is said to be a cultivation of cultivation. There is. Moreover, in the case of a crop of one year normally, such as water rice, failure is not particularly permitted.
- the development of a technique for improving the dissolution control function of the time-release coating pesticide granules i.e., the development of a technique to completely or minimally reduce the leakage of the pesticide active ingredient into the environment during the dissolution suppression period establishes a labor-saving cultivation method. It is a task for.
- the coated pesticide granules require additional equipment for forming the coating layer, the production cost is high, and even if high dissolution control is realized, it may be difficult to commercialize due to high economic burden.
- the inventors of the present invention can manufacture the dissolution-controlled pesticide granules at low cost in order to solve the above-mentioned conventional problems, yet have low environmental pollution due to the low toxicity and biodegradable characteristics, and the dissolution control type capable of realizing high-level dissolution control. We want to provide pesticide formulations.
- the problem to be solved of the present invention is to provide a dissolution-controlled pesticide formulation and a method for manufacturing the same, which can be realized at a low cost due to low environmental pollution due to low toxicity and biodegradable characteristics, and high dissolution control.
- the present invention is an elution-controlled pesticide granule comprising an agrochemical active ingredient, a natural wax and a pH adjusting agent, wherein the agrochemical active ingredient includes a pyridine sulfonylurea compound represented by the following Chemical Formula 1, a salt or stereochemical isomer thereof, and
- the natural wax contains 2 to 8% by weight based on the total weight of the pesticide formulation, and the pesticide formulation provides an elution-controlled pesticide formulation having a pH of 4 to 6 in a 1% by weight water suspension.
- n an integer of 1 to 3
- R is hydrogen or an alkyl group having 1 to 4 carbon atoms
- R ' is hydrogen, an alkyl group having 1 to 4 carbon atoms, a haloalkyl group having 1 to 3 carbon atoms, a halogen group or an alkoxy group having 1 to 2 carbon atoms,
- X and Y are each independently an alkyl group having 1 to 2 carbon atoms, an alkoxy group having 1 to 2 carbon atoms, a haloalkoxy group having 1 to 2 carbon atoms, or a halogen group.
- a pyridine sulfonyl urea compound represented by the following formula (1) a mixture of agrochemical active ingredients including a salt or a stereochemical isomer, a natural wax and a pH adjusting agent to form a mixture; 2) preparing the mixture paste by stirring the mixture in a solvent; And 3) assembling and drying the mixture paste.
- n an integer of 1 to 3
- R is hydrogen or an alkyl group having 1 to 4 carbon atoms
- R ' is hydrogen, an alkyl group having 1 to 4 carbon atoms, a haloalkyl group having 1 to 3 carbon atoms, a halogen group or an alkoxy group having 1 to 2 carbon atoms,
- X and Y are each independently an alkyl group having 1 to 2 carbon atoms, an alkoxy group having 1 to 2 carbon atoms, a haloalkoxy group having 1 to 2 carbon atoms, or a halogen group.
- the present invention provides a method for cultivating a crop using the dissolution-controlled pesticide formulation.
- dissolution-controlled pesticide formulation and its manufacturing method of the present invention due to its low toxicity and biodegradable characteristics, there is little environmental pollution, high dissolution control can be realized, and dissolution-controlled pesticide formulation can be manufactured at low cost.
- Example 1 is a graph showing the dissolution degree (%) in water after 72 hours of dissolution-controlled pesticide formulations of Example 1 and Comparative Example 1.
- the present invention relates to a dissolution-controlled pesticide formulation and a method for manufacturing the same, less environmental pollution due to low toxicity and biodegradability, high dissolution control can be realized, and a dissolution-controlled pesticide formulation capable of being manufactured at low cost and a method for manufacturing the same It aims to provide.
- the dissolution-controlled pesticide formulation of the present invention may include an agrochemical active ingredient, a natural wax, and a pH adjusting agent, and the agrochemical active ingredient may include a pyridine sulfonylurea compound represented by the following Chemical Formula 1, a salt or stereochemical isomer thereof
- the natural wax may be included in an amount of 2 to 8% by weight based on the total weight of the pesticide granule, and the pesticide granule may be pH 4 to 6 in a suspended state of 1% by weight in water.
- n may represent an integer from 1 to 3
- R may be hydrogen or an alkyl group having 1 to 4 carbon atoms
- R ' may be hydrogen, an alkyl group having 1 to 4 carbon atoms, a haloalkyl group having 1 to 3 carbon atoms, a halogen group, or an alkoxy group having 1 to 2 carbon atoms,
- X and Y may each independently be an alkyl group having 1 to 2 carbon atoms, an alkoxy group having 1 to 2 carbon atoms, a haloalkoxy group having 1 to 2 carbon atoms, or a halogen group.
- the agrochemical active ingredient of the dissolution-controlled pesticide formulation of the present invention may include a pyridine sulfonylurea compound represented by the following Chemical Formula 1, a salt or stereochemical isomer thereof, which is known to be useful as a pre-emergence and / or post-emergence treatment herbicide in rice farming. It is characterized by being able to.
- n may represent an integer from 1 to 3
- R may be hydrogen or an alkyl group having 1 to 4 carbon atoms
- R ' may be hydrogen, an alkyl group having 1 to 4 carbon atoms, a haloalkyl group having 1 to 3 carbon atoms, a halogen group, or an alkoxy group having 1 to 2 carbon atoms,
- X and Y may each independently be an alkyl group having 1 to 2 carbon atoms, an alkoxy group having 1 to 2 carbon atoms, a haloalkoxy group having 1 to 2 carbon atoms, or a halogen group.
- n may be an integer of 1 or 2
- R may be hydrogen or a methyl group
- R ' may be hydrogen, a halogen group or a methyl group
- X and Y may each be a methoxy group.
- n may be an integer of 1 or 2
- R may be a methyl group
- R ' may be hydrogen, Cl, Br or a methyl group
- X and Y may each be a methoxy group. have.
- the pyridine sulfonylurea compound represented by Chemical Formula 1 is, for example, N-[(4,6-dimethoxypyrimidin-2-yl) aminocarbonyl] -2- (2-fluoro-1 -Methoxyacetoxy-n-propyl) pyridine-3-sulfonamide, N-[(4,6-dimethoxypyrimidin-2-yl) aminocarbonyl] -2- (2-fluoro-1- Hydroxyacetoxy-n-propyl) pyridine-3-sulfonamide, N-[(4,6-dimethoxypyrimidin-2-yl) aminocarbonyl] -2- (2-fluoro-1- ( 3-hydroxypropion) oxy-n-propyl) pyridine-3-sulfonamide, N-[(4,6-dimethoxypyrimidin-2-yl) aminocarbonyl] -2- (2-fluoro- 1- (3-methoxypropion) oxy-n-propyl)
- the pyridine sulfonyl urea compound represented by Chemical Formula 1 may be a compound of Chemical Formula 2 (ISO proposed name: flucetosulfuron).
- the flucetosulfuron is safe for these crops when treating soil or foliage with respect to rice, wheat, barley (appropriate dosage: 10-40 g ai / ha) and turf (appropriate dosage: 50-200 g ai / ha), It is known to have excellent herbicidal effect on a wide variety of vegetation such as broad-leaved weeds, flower weeds, weeds, weeds and perennial weeds.
- one or two or more other pesticide active ingredients may be optionally mixed in addition to the pyridine sulfonylurea compound represented by the formula (1).
- the agrochemical active ingredients that can be mixed may include general herbicidal active ingredients, pesticidal active ingredients, bactericidal active ingredients, or plant growth control active ingredients, but are not limited thereto.
- dissolution control-type pesticide granules of the present invention When the dissolution control-type pesticide granules of the present invention are used, dissolution control is possible even when a relatively high agrochemical active ingredient having a solubility in water (25 ° C) of 100 ppm or more, more preferably 500 ppm or more is used.
- a pesticide active ingredient having a relatively high solubility specifically, a neonicotinoid-based compound can be exemplified, and more specifically, nitenpyram, imidacloprid, acetamiprid, thiamethoxam, crotianidine, thia Cloprid, dinotephran, etc. can be illustrated preferably.
- the dissolution-controlled pesticide formulation of the present invention preferably contains 0.1 to 0.4% by weight, more specifically 0.2% to 0.3% by weight, based on the total weight of the pesticide active ingredient.
- the dissolution-controlled agrochemical granules of the present invention contain the agrochemical active ingredient in a content ratio within the above range, a sufficient control effect can be obtained and at the same time, suppression of the elution of the agrochemical active ingredient can be effectively achieved.
- the dissolution-controlled pesticide formulation of the present invention uses natural wax rather than synthetic plastic resin, and thus has less environmental pollution due to the low toxicity and biodegradable characteristics of natural wax, and realizes high dissolution control. It is characterized by.
- the natural wax used in the present invention is characterized in that the melting point is 70 to 90 °C, specifically 75 to 85 °C.
- natural wax melts due to heat generated in the granulation and drying process of the pesticide granules to fill the voids in the pesticide granules to control the disintegration of the granules in the water to elute the active ingredient of the pesticide. Can be controlled.
- the melting point is too low, natural wax may be denatured by heat generated in the granulation and drying process of the pesticide granules, or wax may flow out of the granules and be lost, and wax may flow out depending on the environment during storage. have. If the melting point is too high, the natural wax may not melt due to heat generated in the granulation and drying process of the pesticide granules, so that it may not have a dissolution control function.
- natural waxes usable in the present invention include animal natural waxes such as bees wax, lanolin (wool wax), whale wax and tallow; Or it may include one or more vegetable natural waxes such as Carnauba wax, Candelilla Wax, Rice Wax and Japanese wax, more specifically, stability to heat and In terms of melting point, Carnauba wax is most preferred. On the other hand, the melting point of the carnauba wax is about 80 to 85 °C.
- the dissolution-controlled pesticide formulation of the present invention preferably contains 2 to 8% by weight, specifically 3 to 5% by weight of the natural wax relative to the total weight of the pesticide formulation.
- the active ingredient of the agrochemical When included below the above range, the active ingredient of the agrochemical is released in a relatively short period of time, and the possibility of weakening is increased, and when it exceeds the above range, the release of the active ingredient is excessively suppressed to obtain a sufficient harmful biological control effect. It may not be possible.
- the dissolution-controlled pesticide granules of the present invention may further include a coating layer containing natural wax on all or part of the granule surface by melting the natural wax component in the pesticide granules.
- a coating layer containing natural wax on all or part of the granule surface by melting the natural wax component in the pesticide granules.
- the pyridine sulfonyl urea compound represented by Chemical Formula 1, which is the active ingredient of the agrochemical of the present invention, has a characteristic in that water solubility in acidic conditions decreases because the hydrogen atom of the sulfonamide group desorbs and ionizes.
- the dissolution-controlled pesticide granules of the present invention further include a pH adjusting agent to control the dissolution by controlling the pH of the granules.
- the pH adjusting agent used in the dissolution-controlled pesticide formulation of the present invention includes organic acids such as acetic acid, citric acid, ascorbic acid, sorbic acid, succinic acid, fumaric acid, oleic acid and benzoic acid; Or inorganic acids such as phosphoric acid, hydrochloric acid and sulfuric acid.
- phosphoric acid is dipotassium hydrogen phosphate (K 2 HPO 4 ), potassium dihydrogen phosphate (KH 2 PO 4 ), disodium hydrogen phosphate (Na 2 HPO 4 ) And sodium dihydrogen phosphate (NaH 2 PO 4 ).
- the dissolution-controlled pesticide formulation of the present invention preferably contains the pH adjusting agent 10 to 25% by weight, specifically 10 to 20% by weight, or 10 to 15% by weight based on the total weight of the pesticide formulation.
- the pH adjusting agent is included in the content ratio in the above range, a sufficient control effect can be obtained, and at the same time, suppression of elution of the active ingredient of the agrochemical can be effectively achieved.
- Dissolution-controlled pesticide granules of the present invention is characterized in that by including the pH adjusting agent, pH 4 to 6 in a suspended state of 1% by weight of water, more specifically pH 5 to 6.
- '1% by weight suspended in water' means a suspension in which 1% by weight of the dissolution-controlled pesticide granules is suspended in 99% by weight of water.
- the dissolution-controlled pesticide formulation according to the present invention may further include a solid carrier, a surfactant, a solvent, a dispersant, a wetting agent, a thickener, a binder, or an adjuvant in addition to the above components.
- solid carriers natural minerals such as quartz, clay, silica, kaolinite, pyrophyllite, talc, bentonite, acidic clay, attapulgite, zeolite, and diatomaceous earth; Inorganic salts such as calcium carbonate, ammonium sulfate, sodium sulfate and potassium chloride; Organic solid carriers such as synthetic silicic acid, synthetic silicate, starch, cellulose, and plant powder; Plastic carriers such as polyethylene, polypropylene, and polyvinylidene chloride; Urea, inorganic hollow bodies, plastic hollow bodies, fumed silica (white carbon), and the like.
- the carriers may be used alone or in combination of two or more, and the blending ratio thereof is generally 0.1 to 95% by weight, preferably 1 to 90% by weight, more preferably compared to the total weight of the dissolution-controlled pesticide formulation. May be in the range of 10 to 90% by weight.
- Possible solvents include aromatic hydrocarbons such as xylene mixtures or alcohols and glycols such as substituted naphthalene ethanol, ethylene glycol, ethylene glycol monomethyl ether or ethylene glycol monoethyl ether and their ethers and esters; Ketones such as cyclohexanone; Strong polar solvents such as N-methyl-2-pyrrolidone, dimethylsulfoxide or dimethyl formamide; Epoxidized or non-epoxidized vegetable oils such as epoxidized coconut oil or soybean oil; Or water.
- aromatic hydrocarbons such as xylene mixtures or alcohols and glycols such as substituted naphthalene ethanol, ethylene glycol, ethylene glycol monomethyl ether or ethylene glycol monoethyl ether and their ethers and esters
- Ketones such as cyclohexanone
- Strong polar solvents such as N-methyl-2-pyrrolidone, dimethylsulfoxide or dimethyl formamide
- Dispersants include anionic dispersants such as salts of lignin sulfonic acid, salts of naphthalene sulfonic acid, salts of lauryl sulfate, salts of lauryl sulfonic acid, salts of polyoxyalkylene alkyl aryl ether sulfates, salts of polyoxyalkylene alkyl ether sulfates, Polyoxyalkylene alkyl aryl ether, polyoxyalkylene alkyl ether, etc. are mentioned.
- anionic wetting agents such as sodium lauryl sulfate, salts of polyoxyalkylene alkyl phenyl ether sulfonic acids, salts of dialkyl sulfosuccinates, salts of dialkyl naphthalene sulfonic acids, salts of polyoxyalkylene alkyl ether sulfates, acetylene series
- anionic wetting agents such as sodium lauryl sulfate, salts of polyoxyalkylene alkyl phenyl ether sulfonic acids, salts of dialkyl sulfosuccinates, salts of dialkyl naphthalene sulfonic acids, salts of polyoxyalkylene alkyl ether sulfates, acetylene series
- nonionic surfactants or urea complexes of nonionic surfactants can be used.
- wetting agents and dispersants are not limited to those described above, and any of nonionic surfactants and anionic surfactants may be used, and cationic surfactants may also be used in some cases.
- a thickener is divided into polysaccharides such as isosaccharides and heterosaccharides, and inorganic substances such as montmorillorite, smectite, sepiolite, hectorite, hydrophilic / hydrophobic silica.
- Isomorphic sugars can be exemplified by furan gum, and heterosaccharides are exemplified by guar gum, xanthan gum, and wellan gum.
- Possible binders are starch, dextrin, alpha starch, sodium alginate, gum arabic, gelatin, lignin sulfonate, glucose, sorbitol, polyethylene glycol, hydroxypropyl cellulose (HPC) ), Hydroxypropyl methyl cellulose, polyvinyl pyrrolidone, and the like.
- the adjuvant is a substance used in the preparation step to improve drug efficacy or diluted in the spray solution preparation step.
- anionic surfactants cationic surfactants, and nonionic surfactants are typical.
- Substances that can be used as adjuvants include salts of dialkyl sulfosuccinates, acetylene-based nonionic surfactants, polyoxyalkylene alkyl ethers, polyoxyalkylene alkylphenol ethers, polyoxyethylene alkylamines, ethoxylated sorbitan Esters, polyoxyethylene fatty acid esters, polyoxyethylene-polyoxypropylene-polyoxyethylene triblock copolymers, alkoxylated trisiloxanes, and the like.
- Each of the additives may be used alone or in combination of two or more, and the blending ratio thereof is generally from 0.01 to 30% by weight, preferably from 0.01 to 20% by weight, more preferably from the total weight of the dissolution-controlled pesticide formulation. It may be in the range of 0.01 to 15% by weight.
- the dissolution-controlled pesticide formulation of the present invention has a time-release controlled release function.
- the sustained-release control-type sustained-release function realizes an elution pattern consisting of an elution suppression period in which the elution of a pesticide active ingredient is suppressed for a certain period of time after use, and an elution pattern consisting of an elution start time and an elution duration in which rapid elution is started and continued after a certain period of time has elapsed.
- Function means.
- the period from use until the active ingredient of the agrochemical in the pesticide formulation is eluted by about 20% by weight in the external environment is defined as the elution suppression period, and the period from 20% by weight to the elution of about 100% by weight is eluted.
- a duration it means a function of realizing an elution pattern in which the ratio of elution suppression period / elution duration is 0.2 or more.
- the dissolution-controlled pesticide formulation of the present invention has a time-release function of a time-controlled elution controlled by natural wax, and has an excellent time-release function in which leakage of the active ingredient of the agrochemical in the elution suppression period is significantly suppressed.
- the dissolution-controlled pesticide formulation of the present invention is characterized in that the dissolution degree after 72 hours of the pesticide active ingredient is 10 to 20%, specifically 10 to 15%, and the duration of dissolution of the pesticide active ingredient in the pesticide formulation is It is characterized by being 200 to 300 hours, specifically 250 to 300 hours.
- the elution duration means a period during which dissolution degree of the agrochemical active ingredient reaches 90 to 100%, specifically 95 to 100% after initiation of elution.
- the dissolution-controlled pesticide formulation of the present invention inhibits the elution of the active ingredient of the pesticide during the elution suppression period, and the elution continues for a certain period of time or more after the start of elution, sowing the whole or most of the pesticide active ingredient required for the cultivation period. Or, even when used at the same time as transplantation, it does not cause growth disorders (weakness) in the early stage of cultivation.
- the agrochemical active ingredient contained in addition to the pyridine sulfonyl urea compound represented by Chemical Formula 1 as the agrochemical active ingredient of the present invention is similarly controlled so that dissolution can be controlled and the number of spraying and use of the pesticide can be reduced, and these operations are significantly reduced. You can.
- the present invention provides a method for manufacturing a dissolution-controlled pesticide formulation capable of producing a dissolution-controlled pesticide formulation at a low cost.
- Pesticide granulation can be obtained by assembling a raw material containing an agrochemical active ingredient as an essential ingredient.
- a granulation method include an extrusion granulation method, a coating granulation method, and an adsorption granulation method. In this invention, it is characterized by the extrusion granulation method among these granulation methods.
- the method for preparing a dissolution-controlled pesticide formulation of the present invention comprises: 1) a mixture of an agrochemical active ingredient, a natural wax, and a pH adjusting agent containing a pyridinesulfonylurea compound represented by the following Chemical Formula 1, a salt or a stereochemical isomer thereof, to form a mixture; step; 2) preparing the mixture paste by stirring the mixture in a solvent; And 3) assembling and drying the mixture paste, and the drying temperature may be 75 to 100 ° C.
- n may represent an integer of 1 to 3
- R may be hydrogen or an alkyl group having 1 to 4 carbon atoms
- R ' may be hydrogen, an alkyl group having 1 to 4 carbon atoms, a haloalkyl group having 1 to 3 carbon atoms, a halogen group, or an alkoxy group having 1 to 2 carbon atoms,
- X and Y may each independently be an alkyl group having 1 to 2 carbon atoms, an alkoxy group having 1 to 2 carbon atoms, a haloalkoxy group having 1 to 2 carbon atoms, or a halogen group.
- Dissolution-controlled pesticide granules of the present invention can be prepared using an extruder granulator by a wet granulation method, and one or more agrochemical active ingredients, natural waxes, pH adjusters, solid carriers and other additives are added to uniformly mix them, and a solvent is obtained from the mixture.
- a solvent is obtained from the mixture.
- As a liquid after adding the auxiliary component of the liquid and an appropriate amount of water and kneading in a paste form, after assembling using an extruder granulator equipped with a screen having a hole having a diameter of 0.5 to 3 mm, specifically 0.5 to 1.5 mm, and then drying Can be produced.
- the pyridine sulfonyl urea compound represented by Chemical Formula 1, which is an agrochemical active ingredient of the present invention, does not have high thermal stability, and requires careful control of its drying temperature, and the drying temperature of the present invention is 75 to 100 ° C, specifically Is characterized in that it may be 75 to 90 °C, more specifically 80 to 90 °C.
- the drying temperature is too low, the drying time may be too long to deteriorate productivity, and the longer the time until drying and water is completely removed, the larger the amount of the active ingredient of the pesticide that moves from the inside of the granule to the outside in the manufacturing process to control dissolution. This can lead to impaired function. Conversely, when the drying temperature is too high, the stability of the agrochemical active ingredient may be poor, and a sufficient control effect may not be expected.
- the dissolution-controlled pesticide granules of the present invention obtained by the above production method may have an average particle diameter in the range of usually 0.5 to 3 mm, specifically 0.5 to 1.5 mm.
- the present invention can provide a method of cultivating a crop using an elution-controlled pesticide formulation, and is used by spraying the elution-controlled pesticide formulation on soil and water, and the leaves and stems of the crop.
- the dissolution-controlled pesticide formulation is not limited to the target crop, and other than rice, root vegetables such as cabbage, lettuce, spinach, radish, carrot, and other fruits and vegetables such as tomato, cucumber, pumpkin, rice, wheat, corn, potato, and legumes , It can be used for crafts, flowers, etc.
- the present invention can provide a dissolution-controlled pesticide formulation and a method for manufacturing the same with low environmental pollution due to low toxicity and biodegradable characteristics, high dissolution control, and low cost.
- NK-PVA25 (40% by weight aqueous solution of PVAc) was mixed with 18 parts by weight of water to prepare a homogeneous solution.
- Pesticide granules were prepared in the same manner as in Example 1, except that 5 parts by weight of Carnauba Wax and 77.75 parts by weight of Pyrophyllite were used in Example 1.
- Example 1 5 parts by weight of Carnauba Wax, 20 parts by weight of potassium dihydrogen phosphate (KH 2 PO 4 ), and 67.75 parts by weight of Pyrophyllite were used.
- a pesticide formulation was prepared in the same manner as 1.
- Example 1 except for using Carnauba Wax (Carnauba Wax) and pyrrophyllite (Pyrophyllite), except for using 82.75 parts by weight, a pesticide granule was prepared in the same manner as in Example 1.
- a pesticide granule was prepared in the same manner as in Example 1, except that 1 part by weight of Carnauba Wax and 81.75 parts by weight of Pyrophyllite were used in Example 1.
- Example 1 except for using Carnauba Wax (Carnauba Wax) at 10 parts by weight and Pyrophyllite (Pyrophyllite) at 72.75 parts by weight, pesticide granules were prepared in the same manner as in Example 1.
- Example 1 except that potassium dihydrogen phosphate (KH 2 PO 4 ) was not used and pyrrophyllite (Pyrophyllite) was used in the same manner as in Example 1, except that 89.75 parts by weight of agrochemical granules were prepared.
- KH 2 PO 4 potassium dihydrogen phosphate
- pyrrophyllite Pyrophyllite
- the pesticide formulation of Example 1 using natural wax had a water dissolution degree of about 12.2% after 72 hours, whereas the pesticide formulation of Comparative Example 1 without using natural wax had a water dissolution degree after 72 hours. It was confirmed that is 97%.
- Examples 1 and 2 using an appropriate amount of natural wax realized a high degree of elution control at about 12 to 15% after 72 hours, and a water dissolution degree after 288 hours was about 98%. To the extent, it was confirmed that the elution of the active ingredient continued for a certain period of time required for farming after spraying the pesticide.
- Comparative Example 1 which did not use natural wax at all, confirmed that the dissolution rate in water after 4 hours was 69%, and the dissolution rate in water after 72 hours was 97%, so that no dissolution control was performed, and a small amount of natural wax was used.
- Comparative Example 2 it was confirmed that the dissolution control function of water dissolution was not excellent at about 46% after 72 hours.
- Comparative Example 3 since the granules floated on the water surface, it was impossible to measure the dissolution in water under the same conditions. So, several times, a glass bottle was inverted and forcibly dropped below the surface of the water, and then a measurement test was conducted. Even though the measurement test was conducted by changing the conditions so that the dissolution degree could be measured as described above, it was confirmed that the dissolution control function was lower than in the example, and the granules were suspended on the water surface, and the same conditions as in Examples 1 and 2 Comparative Example 3, in which the degree of dissolution in water cannot be measured, is not preferable because there is a risk of weakness when used in an actual rice field.
- Example 3 As shown in Table 3, the pesticide granules of Example 1 having a pH of 6 in a 1% by weight aqueous suspension and Example 3 having a pH of 5.5 are highly controlled for dissolution, but of Comparative Example 4 having a pH of 7 It was confirmed that the dissolution control function was not realized in the pesticide granulation.
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Abstract
Description
| Carnauba Wax 함량 | KH2PO4 함량 | 건조 온도 | 1% 수중 현탁 상태에서의 pH | |
| 실시예 1 | 3 중량부 | 10 중량부 | 80 ℃ | 6.0 |
| 실시예 2 | 5 중량부 | 10 중량부 | 80 ℃ | 6.0 |
| 실시예 3 | 5 중량부 | 20 중량부 | 80 ℃ | 5.5 |
| 비교예 1 | - | 10 중량부 | 80 ℃ | 6.0 |
| 비교예 2 | 1 중량부 | 10 중량부 | 80 ℃ | 6.0 |
| 비교예 3 | 10 중량부 | 10 중량부 | 80 ℃ | 6.0 |
| 비교예 4 | 3 중량부 | - | 80 ℃ | 7.0 |
| 천연왁스사용량 | 플루세토설퓨론의 수중 용출도 (%) | |||
| 4 hrs | 72 hrs | 288 hrs | ||
| 실시예 1 | 3 중량부 | 2.49 | 12.2 | 97.7 |
| 실시예 2 | 5 중량부 | 4.48 | 15.5 | 97.9 |
| 비교예 1 | - | 69 | 97 | 99.9 |
| 비교예 2 | 1 중량부 | 12.0 | 46.6 | 99.8 |
| 비교예 3 | 10 중량부 | 3.75 | 18.44 | 90.7 |
| 1% 수중 현탁 상태에서의 pH | 플루세토설퓨론의 수중 용출도 (%) | |||
| 4 hrs | 72 hrs | 336 hrs | ||
| 실시예 1 | 6 | 2.49 | 12.2 | 99.8 |
| 실시예 3 | 5.5 | 3.5 | 17.1 | 89.6 |
| 비교예 4 | 7 | 24 | 97.0 | 99.7 |
Claims (15)
- 농약 활성 성분, 천연왁스 및 pH 조절제를 포함하는 용출 제어형 농약 입제로서,상기 농약 활성 성분은 하기 화학식 1로 표시되는 피리딘설포닐우레아 화합물, 그의 염 또는 입체화학적 이성질체를 포함하고,상기 천연왁스는 농약 입제 총 중량 대비 2 내지 8 중량% 포함되고,상기 농약 입제는 1 중량%의 수중 현탁 상태에서 pH 4 내지 6 인 것인 용출 제어형 농약 입제.[화학식 1]상기 화학식 1에서,n은 1 내지 3의 정수를 나타내고,R은 수소 또는 탄소수 1 내지 4의 알킬기이며,R'은 수소, 탄소수 1 내지 4의 알킬기, 탄소수 1 내지 3의 할로알킬기, 할로겐기 또는 탄소수 1 내지 2의 알콕시기이고,X 및 Y는 각각 독립적으로 탄소수 1 내지 2의 알킬기, 탄소수 1 내지 2의 알콕시기, 탄소수 1 내지 2의 할로알콕시기 또는 할로겐기이다.
- 제1항에 있어서,상기 농약 활성 성분은 농약 입제 총 중량 대비 0.1 내지 0.4 중량% 포함되는 것인 용출 제어형 농약 입제.
- 제1항에 있어서,상기 농약 활성 성분은 N-[(4,6-디메톡시피리미딘-2-일)아미노카르보닐]-2-(2-플루오로-1-메톡시아세톡시-n-프로필)피리딘-3-술폰아미드, N-[(4,6-디메톡시피리미딘-2-일)아미노카르보닐]-2-(2-플루오로-1-하이드록시아세톡시-n-프로필)피리딘-3-술폰아미드, N-[(4,6-디메톡시피리미딘-2-일)아미노카르보닐]-2-(2-플루오로-1-(3-하이드록시프로피온)옥시-n-프로필)피리딘-3-술폰아미드, N-[(4,6-디메톡시피리미딘-2-일)아미노카르보닐]-2-(2-플루오로-1-(3-메톡시프로피온)옥시-n-프로필)피리딘-3-술폰아미드, N-[(4,6-디메톡시피리미딘-2-일)아미노카르보닐]-4-메틸-2-(2-플루오로-1-메톡시아세톡시-n-프로필)피리딘-3-술폰아미드, N-[(4,6-디메톡시피리미딘-2-일)아미노카르보닐]-4-클로로-2-(2-플루오로-1-메톡시아세톡시-n-프로필)피리딘-3-술폰아미드 및 N-[(4,6-디메톡시피리미딘-2-일)아미노카르보닐]-4-브로모-2-(2-플루오로-1-메톡시아세톡시-n-프로필)피리딘-3-술폰아미드로 이루어진 군으로부터 선택된 하나 이상을 포함하는 것인 용출 제어형 농약 입제.
- 제1항에 있어서,상기 천연 왁스는 녹는점이 70 내지 90 ℃ 인 것인 용출 제어형 농약 입제.
- 제1항에 있어서,상기 천연 왁스는 동물성 천연 왁스; 또는 식물성 천연 왁스를 하나 이상 포함하는 것인 용출 제어형 농약 입제.
- 제1항에 있어서,상기 농약 입제는 표면의 전부 또는 일부에 천연왁스를 포함하는 코팅층을 더 포함하는 것인 용출 제어형 농약 입제.
- 제1항에 있어서,상기 pH 조절제는 농약 입제 총 중량 대비 10 내지 25 중량% 포함되는 것인 용출 제어형 농약 입제.
- 제1항에 있어서,상기 pH 조절제는 초산, 구연산, 아스코르브산, 소르빈산, 호박산, 푸마르산, 올레산 및 안식향산으로 이루어진 군으로부터 선택된 1종 이상을 포함하는 유기산; 또는 인산, 염산 및 황산으로 이루어진 군으로부터 선택된 1종 이상을 포함하는 무기산을 포함하는 것인 용출 제어형 농약 입제.
- 제8항에 있어서,상기 인산은 인산수소이칼륨(K2HPO4), 인산이수소칼륨(KH2PO4), 인산수소이나트륨(Na2HPO4) 및 인산이수소나트륨(NaH2PO4)로 이루어진 군으로부터 선택된 하나 이상을 포함하는 것인 용출 제어형 농약 입제.
- 제1항에 있어서,상기 농약 입제는 고체 담체, 계면활성제, 용매, 분산제, 습윤제, 증점제, 결합제 및 에쥬번트로 이루어진 군으로부터 선택된 하나 이상의 첨가제를 더 포함하는 것인 용출 제어형 농약 입제.
- 제1항에 있어서,상기 농약 입제의 농약 활성 성분의 72 시간 후의 수중 용출도는 10 내지 20 % 인 것인 용출 제어형 농약 입제.
- 제1항에 있어서,상기 농약 입제의 농약 활성 성분의 용출 지속 기간은 200 내지 300 시간인 것인 용출 제어형 농약 입제.
- 1) 하기 화학식 1로 표시되는 피리딘설포닐우레아 화합물, 그의 염 또는 입체화학적 이성질체를 포함하는 농약 활성 성분, 천연왁스 및 pH 조절제를 혼합하여 혼합물을 형성하는 단계;2) 상기 혼합물을 용매에 교반시켜 혼합물 페이스트를 제조하는 단계; 및3) 상기 혼합물 페이스트를 조립 및 건조시키는 단계를 포함하는 제1항 내지 제12항 중 어느 한 항의 용출 제어형 농약 입제 제조방법.[화학식 1]상기 화학식 1에서,n은 1 내지 3의 정수를 나타내고,R은 수소 또는 탄소수 1 내지 4의 알킬기이며,R'은 수소, 탄소수 1 내지 4의 알킬기, 탄소수 1 내지 3의 할로알킬기, 할로겐기 또는 탄소수 1 내지 2의 알콕시기이고,X 및 Y는 각각 독립적으로 탄소수 1 내지 2의 알킬기, 탄소수 1 내지 2의 알콕시기, 탄소수 1 내지 2의 할로알콕시기 또는 할로겐기이다.
- 제13항에 있어서,상기 건조 온도는 75 내지 100 ℃ 인 것인 용출 제어형 농약 입제 제조방법.
- 제1항 내지 제12항 중 어느 한 항의 용출 제어형 농약 입제를 사용하는 농작물의 재배방법.
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| CN201980058678.6A CN112672645A (zh) | 2018-09-20 | 2019-09-19 | 控释型农药粒剂及其制造方法 |
| MYPI2021001141A MY196217A (en) | 2018-09-20 | 2019-09-19 | Controlled-Release Type Pesticide Granules and Manufacturing Method Thereof |
| JP2021537017A JP7184444B2 (ja) | 2018-09-20 | 2019-09-19 | 溶出制御型農薬粒剤及びその製造方法 |
| PH12021550514A PH12021550514A1 (en) | 2018-09-20 | 2021-03-10 | Controlled-release type pesticide granules and manufacturing method thereof |
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| JPH11189502A (ja) * | 1997-12-25 | 1999-07-13 | Nissan Chem Ind Ltd | 放出制御された畑地用除草粒剤 |
| US6093681A (en) * | 1996-10-25 | 2000-07-25 | Monsanto Company | Composition and method for treating plants with exogenous chemicals |
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| JP2010168298A (ja) * | 2009-01-21 | 2010-08-05 | Nissan Chem Ind Ltd | 農薬活性成分の放出が制御される固型農薬製剤 |
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| WO1995028835A1 (en) * | 1994-04-21 | 1995-11-02 | Nippon Shinyaku Co., Ltd. | Process for producing pesticide-containing wax matrix and agricultural preparation |
| KR100399366B1 (ko) | 2000-10-12 | 2003-09-26 | 주식회사 엘지생명과학 | 제초성 피리딘술포닐우레아 유도체 |
| JP4740514B2 (ja) * | 2002-07-12 | 2011-08-03 | 三井化学アグロ株式会社 | 農薬粒剤の改善された製造方法 |
| JP5822055B2 (ja) | 2010-01-06 | 2015-11-24 | 日産化学工業株式会社 | 農薬活性成分の放出が制御される固型農薬製剤 |
| JP2012012299A (ja) | 2010-06-29 | 2012-01-19 | Nissan Chem Ind Ltd | 農薬活性成分の放出が制御される固型農薬製剤 |
| PH12013501138A1 (en) * | 2010-12-06 | 2019-03-22 | Syngenta Korea Ltd | Water-floating and diffusible agrochemical tablet formulation |
| JP7040895B2 (ja) * | 2016-02-26 | 2022-03-23 | 三井化学アグロ株式会社 | 安定化された農薬組成物 |
| JP2017197529A (ja) * | 2016-04-20 | 2017-11-02 | 三井化学アグロ株式会社 | 鉄コーティング種子製剤、その製造方法および植物病害防除方法 |
| JP2018012709A (ja) * | 2017-08-17 | 2018-01-25 | 日産化学工業株式会社 | 水中への溶出が促進される固形農薬組成物 |
-
2019
- 2019-09-19 WO PCT/KR2019/012177 patent/WO2020060246A1/ko not_active Ceased
- 2019-09-19 CN CN201980058678.6A patent/CN112672645A/zh active Pending
- 2019-09-19 JP JP2021537017A patent/JP7184444B2/ja active Active
- 2019-09-19 KR KR1020190115649A patent/KR102275855B1/ko not_active Expired - Fee Related
- 2019-09-19 MY MYPI2021001141A patent/MY196217A/en unknown
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2021
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6093681A (en) * | 1996-10-25 | 2000-07-25 | Monsanto Company | Composition and method for treating plants with exogenous chemicals |
| JPH11189502A (ja) * | 1997-12-25 | 1999-07-13 | Nissan Chem Ind Ltd | 放出制御された畑地用除草粒剤 |
| US6806229B1 (en) * | 2000-10-12 | 2004-10-19 | Lg Life Sciences | Herbicidally active pyridine sulfonyl urea derivatives |
| KR20040099351A (ko) * | 2002-03-29 | 2004-11-26 | 구미아이 가가쿠 고교 가부시키가이샤 | 입상 농약조성물 |
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| Publication number | Publication date |
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| KR102275855B1 (ko) | 2021-07-12 |
| MY196217A (en) | 2023-03-23 |
| PH12021550514A1 (en) | 2022-02-21 |
| KR20200033758A (ko) | 2020-03-30 |
| JP2021535228A (ja) | 2021-12-16 |
| CN112672645A (zh) | 2021-04-16 |
| JP7184444B2 (ja) | 2022-12-06 |
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