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CN-121986798-A - Pesticide composition, preparation and application thereof

CN121986798ACN 121986798 ACN121986798 ACN 121986798ACN-121986798-A

Abstract

The application relates to the technical field of herbicides, in particular to a pesticide composition, a preparation and application thereof, wherein the pesticide composition comprises an active ingredient A and an active ingredient B, and the active ingredient A is glyphosate acid or ammonium glyphosate salt; the active ingredient B is carfentrazone-ethyl, the mass concentration of the active ingredient A is 200-480g/L, and the mass concentration of the active ingredient B is 1-10g/L; the application discloses a pesticide composition, a preparation and application thereof, wherein the pesticide composition is prepared by compounding glyphosate acid or ammonium glyphosate and carfentrazone-ethyl serving as raw materials, has good control effect, and is prepared by mixing the pesticide composition with acceptable auxiliary agents which are allowed to be used in the pesticide science, so that the pesticide preparation is convenient to use, has good safety, is not easy to decompose active ingredients and has stable physicochemical properties.

Inventors

  • CHE HONG
  • SHI XIAOHU

Assignees

  • 江苏仁信作物保护技术有限公司

Dates

Publication Date
20260508
Application Date
20260127

Claims (10)

  1. 1. The pesticide composition is characterized by comprising an active ingredient A and an active ingredient B, wherein the active ingredient A is glyphosate acid or ammonium glyphosate salt, and the active ingredient B is carfentrazone-ethyl.
  2. 2. A pesticidal composition according to claim 1, wherein the active ingredient A has a mass concentration of 200-480g/L and the active ingredient B has a mass concentration of 1-10g/L.
  3. 3.A pesticide preparation is characterized in that each 1L of pesticide preparation consists of the following raw materials: The pesticidal composition of claim 1 or 2; 50-70 g of emulsifying agent; 1-5 g of thickener; 10-20 g of film forming agent; the dispersion medium was made up to 1L.
  4. 4. A pesticide preparation according to claim 3, wherein the film forming agent comprises the following raw materials, by mass, 0.5-1.5 parts of carboxymethyl chitosan, 0.1-1 part of organic montmorillonite, 0.05-0.15 part of ammonium persulfate, 5-15 parts of acrylic acid, 0.02-0.08 part of N, N' -2 methylene bisacrylamide, 3-7 parts of modified starch, 40-50 parts of ethanol, 1-3 parts of chitosan, 1-3 parts of sodium lignin sulfonate and 0.1-0.5 part of a silane coupling agent.
  5. 5. A pesticide preparation as set forth in claim 4, wherein the modified starch comprises the following raw materials, by mass, 0.5 to 1.5 parts of starch, 0.5 to 1.5 parts of vinyltriethoxysilane, and 0.06 to 0.1 part of sodium methoxide.
  6. 6. The method for preparing a pesticide preparation according to claim 4, wherein the method comprises the steps of mixing carboxymethyl chitosan and organic montmorillonite, adding ammonium persulfate, acrylic acid and N, N' -2 methylene bisacrylamide, and mixing to obtain a first mixture; Mixing chitosan and sodium lignin sulfonate to obtain a second mixture; Mixing the modified starch and ethanol to obtain a third mixture; and mixing the second mixture and the third mixture, and then adding the silane coupling agent and the first mixture for mixing to obtain the film forming agent.
  7. 7. The pesticide preparation according to claim 3, wherein the emulsifier is at least one of sorbitan monooleate, polysorbate, tristyrylphenol polyoxyethylene ether and castor oil polyoxyethylene ether, the thickener is at least one of bentonite, white carbon black, modified hydrogenated castor oil and xanthan gum, and the dispersion medium is at least one of methyl oleate, mineral oil and soybean oil.
  8. 8. A pesticide preparation is characterized in that each 1L of pesticide preparation consists of the following raw materials: The pesticidal composition of claim 1 or 2; 100-140 g of solvent; 80-120 g of emulsifying agent; 10-30 g of wetting agent; 5-15 g of dispersing agent; 0.5-1.5 g of defoamer; the water was made up to 1L.
  9. 9. The pesticide preparation of claim 8, wherein the solvent is cyclohexanone, the emulsifier is alkylaryl polyoxyethylene ether polyoxypropylene ether, the wetting agent is sorbitan monooleate polyoxyethylene ether, the dispersing agent is dioctyl sodium sulfonate succinate, and the defoamer is an organosilicon defoamer.
  10. 10. Use of the pesticidal composition of claim 1 or 2, or the pesticidal formulation of claims 3-7, or the pesticidal formulation of claim 8 or 9 as a herbicide.

Description

Pesticide composition, preparation and application thereof Technical Field The application relates to the technical field of herbicides, in particular to a pesticide composition, a preparation and application thereof. Background With the acceleration of the modern agricultural process, farmland weed control has become a key link for guaranteeing crop yield and quality. The glyphosate acid or ammonium glyphosate is used as a broad-spectrum and systemic conduction herbicide, and is widely applied to agricultural production by virtue of the excellent prevention and removal effect of the glyphosate acid or ammonium glyphosate on most annual and perennial weeds, but the mechanism of action of the glyphosate acid or ammonium glyphosate acid is mainly to inhibit enolpyruvylshikimate phosphate synthase in plants, the prevention and removal effect of the glyphosate acid or ammonium glyphosate acid on part of broadleaf weeds and resistant weeds is limited, and the duration of time is shorter when the glyphosate acid or ammonium glyphosate acid is used alone, so that the weeds are easy to relapse. The carfentrazone-ethyl is a contact-killing herbicide, acts on protoporphyrinogen oxidase of weeds, can quickly kill broadleaf weeds, but has poor systemic property, cannot prevent and kill underground parts of the weeds, has higher single use cost, and has high safety to gramineous crops. At present, the mode of mixing glyphosate acid or ammonium glyphosate with other herbicides is often adopted in agricultural production to make up for the defect of single medicament, but the existing mixed formulation has the following general problems that firstly, the stability of the formulation is poor, the glyphosate acid or ammonium glyphosate and most herbicides are easy to generate layering, precipitation or degradation of active ingredients in the same system, particularly in an oil suspension system, the compatibility problem of the glyphosate acid or ammonium glyphosate and most herbicides is more prominent, the storage life and the use effect of the medicament are seriously influenced, secondly, the preparation process is rough, particularly in the oil suspension system, the refined processing flow is lacked, the particle size distribution of the formulation is uneven, the suspension rate is low, the medicament loss and the adhesiveness are easy to occur after the spraying, and the utilization rate of the medicament is reduced. Therefore, developing a pesticide composition with good stability, scientific proportion, excellent control effect and environmental protection becomes a problem to be solved in the current pesticide field. Disclosure of Invention Aiming at the defects of the prior art, the application provides a pesticide composition, a preparation and application thereof. In a first aspect, the present application provides a pesticide composition, which adopts the following technical scheme: A pesticide composition comprises an active ingredient A and an active ingredient B, wherein the active ingredient A is glyphosate acid or ammonium glyphosate salt, and the active ingredient B is carfentrazone-ethyl. Preferably, the mass concentration of the active ingredient A is 200-480g/L, and the mass concentration of the active ingredient B is 1-10g/L. In a second aspect, the application provides a pesticide preparation, which adopts the following technical scheme: Each 1L of pesticide preparation consists of the following raw materials: 200-480g of glyphosate acid; 1-10g of carfentrazone-ethyl; 50-70 g of emulsifying agent; 1-5 g of thickener; 10-20 g of film forming agent; the dispersion medium was made up to 1L. Preferably, the film forming agent comprises the following raw materials, by mass, 0.5-1.5 parts of carboxymethyl chitosan, 0.1-1 part of organic montmorillonite, 0.05-0.15 part of ammonium persulfate, 5-15 parts of acrylic acid, 0.02-0.08 part of N, N' -2 methylene bisacrylamide, 3-7 parts of modified starch, 40-50 parts of ethanol, 1-3 parts of chitosan, 1-3 parts of sodium lignin sulfonate and 0.1-0.5 part of silane coupling agent. According to the technical scheme, carboxymethyl chitosan, organic montmorillonite, ammonium persulfate, N' -methylene bisacrylamide and acrylic acid are used as raw materials to prepare a mixture, the mixture is mixed with modified starch, chitosan and sodium lignin sulfonate under the action of a silane coupling agent to prepare the film forming agent, and the adhesion and spreadability of the pesticide preparation are effectively improved through the synergistic effect between the film forming agent and each raw material, so that the loss of active ingredients is reduced, the release of the active ingredients is delayed, the duration of the pesticide preparation is prolonged, and meanwhile, the rain wash resistance of the pesticide preparation is effectively enhanced. Preferably, the modified starch comprises the following raw materials, by mass, 0.5-1.5 parts of starch, 0.5-1.5 p