Pesticide preparation containing fluopyram and application of pesticide preparation in prevention and treatment of crop diseases

Abstract

The invention relates to the technical field of pesticide preparations, and provides a fluopyram-containing pesticide preparation and application thereof in prevention and treatment of crop diseases, the fluopyram-containing pesticide preparation comprises the following raw materials by weight: 30-40 parts of fluopyram, 10-20 parts of menthyl acetate, 8-10 parts of a dispersant, 1-3 parts of a disintegrating agent, 2-4 parts of a wetting agent, 1-2 parts of a binder, and 20-30 parts of a filler; the filler comprises a carrier and 4-hydroxycyclohexanecarboxylic acid; the mass ratio of the carrier to the 4-hydroxycyclohexanecarboxylic acid is 10: (0.2-1). According to the technical scheme, the problem of poor dispersity of the fluopyram pesticide preparation in the related technology is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of pesticide preparations, and in particular to a pesticide preparation containing fluopyram and application thereof in preventing and controlling crop diseases. Background Art

[0002] Fluopyram is a new type of pesticide preparation that plays an important role in the agricultural field. In modern agricultural production, the prevention and control of pests and diseases has always been a crucial link. With the continuous advancement of science and technology, people's requirements for pesticides are getting higher and higher. They must not only effectively prevent and control pests and diseases, but also be environmentally friendly and safe for humans and animals. The emergence of fluopyram provides a new option for solving these problems. Fluopyram has a unique mechanism of action. It can interfere with the respiration of pathogens, thereby effectively preventing and controlling a variety of diseases. Compared with traditional pesticides, fluopyram has higher activity and lower dosage, which can achieve better prevention and control effects while reducing the amount of pesticides used. In addition, fluopyram has less impact on the environment. It has a short residual period in soil and water and is not easy to cause long-term pollution to the ecological environment. At the same time, the preparation has low toxicity to non-target organisms and is relatively safe for beneficial organisms such as bees and fish. However, the solubility of fluopyram is poor, which reduces the dispersibility of fluopyram pesticide preparations. Therefore, the preparation of a fluopyram pesticide preparation with good dispersibility is a problem that needs to be solved at present. Summary of the invention

[0003] The present invention provides a pesticide preparation containing fluopyram and application thereof in preventing and controlling crop diseases, thereby solving the problem of poor dispersibility of fluopyram pesticide preparations in the related art.

[0004] The technical solution of the present invention is as follows: The present invention provides a pesticide preparation containing fluopyram, comprising the following raw materials in parts by weight: 30-40 parts of fluopyram, 10-20 parts of menthyl acetate, 8-10 parts of a dispersant, 1-3 parts of a disintegrant, 2-4 parts of a wetting agent, 1-2 parts of a binder, 0.5-0.8 parts of a surfactant, and 20-30 parts of a filler; The filler includes a carrier and 4-hydroxycyclohexanecarboxylic acid; the mass ratio of the carrier to the 4-hydroxycyclohexanecarboxylic acid is 10:0.2-1.

[0005] As a further technical solution, the mass ratio of the carrier to the 4-hydroxycyclohexanecarboxylic acid is 10:0.3~0.5.

[0006] As a further technical solution, the filler also includes poly(1,4-butylene adipate diol).

[0007] In the present invention, by adding poly(1,4-butylene adipate diol) into the filler, the dispersibility and stability of the pesticide formulation containing fluopyram are further improved.

[0008] As a further technical solution, the addition amount of the poly(1,4-butylene adipate) diol is 1% to 2% of the carrier mass.

[0009] In the present invention, the dispersibility and stability of the pesticide formulation containing fluopyram are further improved by limiting the addition amount of poly(1,4-butylene adipate diol) to 1% to 2% of the mass of the carrier.

[0010] As a further technical solution, the preparation method of the filler comprises the following steps: adding 4-hydroxycyclohexanecarboxylic acid into methanol to dissolve it, adding a carrier to mix, and drying to obtain the filler.

[0011] As a further technical solution, the mixing temperature is 25-28° C., and the mixing time is 3-5 hours.

[0012] As a further technical solution, the carrier includes one or more of bentonite, diatomaceous earth, kaolin, montmorillonite and clay.

[0013] As a further technical solution, the dispersant includes one or more of sodium lignin sulfonate, calcium polycarboxylate, and calcium dodecylbenzene sulfonate.

[0014] As a further technical solution, the disintegrant includes one or more of urea, sodium bicarbonate, and ammonium sulfate.

[0015] As a further technical solution, the wetting agent includes one or more of methyl taurate, sodium lauryl sulfate, and laurate.

[0016] As a further technical solution, the binder includes one or two of hydroxymethyl cellulose and starch.

[0017] The present invention also provides a method for preparing a pesticide preparation containing fluopyram, comprising the following steps: S1, mixing the raw materials of each component and crushing them to obtain powder; S2. After adding water to the powder, kneading, granulating and drying are performed to obtain a pesticide preparation containing fluopyram.

[0018] The present invention also provides a pesticide preparation containing fluopyram for use in preventing and controlling crop diseases.

[0019] The working principle and beneficial effects of the present invention are: The present invention provides a pesticide preparation containing fluoropyramid, which has a good bactericidal effect by using fluoropyramid and menthyl acetate to act together; the use effect of the pesticide preparation containing fluoropyramid is improved by optimizing the content of auxiliary agents such as dispersants, disintegrants, wetting agents, binders, etc., and a filler composed of a carrier and 4-hydroxycyclohexanecarboxylic acid is added to further improve the dispersibility of the pesticide preparation containing fluoropyramid. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] In the following embodiments and comparative examples: Bentonite, particle size: 500 mesh; diatomaceous earth, particle size: 500 mesh; poly(1,4-butylene adipate diol), molecular weight: 2000.

[0022] Example 1 A method for preparing a pesticide preparation containing fluopyram, comprising the following steps: S1, mixing 30 parts of fluopyram, 10 parts of menthyl acetate, 8 parts of sodium lignin sulfonate, 1 part of sodium bicarbonate, 2 parts of methyl taurate, 1 part of hydroxymethyl cellulose, and 20 parts of filler, and grinding to obtain a powder; S2. After adding water to the powder, kneading, granulating and drying are performed to obtain a pesticide preparation containing fluopyram.

[0023] The preparation method of the filler comprises the following steps: adding 1.2 g of 4-hydroxycyclohexanecarboxylic acid into 500 mL of methanol for dissolution, adding 60 g of bentonite, mixing at 25° C. for 5 hours, and drying to obtain the filler.

[0024] Example 2 A method for preparing a pesticide preparation containing fluopyram, comprising the following steps: S1, mixing 40 parts of fluopyram, 20 parts of menthyl acetate, 10 parts of calcium dodecylbenzenesulfonate, 3 parts of ammonium sulfate, 4 parts of sodium lauryl sulfate, 2 parts of starch, and 30 parts of filler, and pulverizing to obtain a powder; S2. After adding water to the powder, kneading, granulating and drying are performed to obtain a pesticide preparation containing fluopyram.

[0025] The preparation method of the filler comprises the following steps: adding 6 g of 4-hydroxycyclohexanecarboxylic acid into 500 mL of methanol for dissolution, adding 60 g of diatomaceous earth, mixing at 28° C. for 3 hours, and drying to obtain the filler.

[0026] Example 3 The only difference between this embodiment and embodiment 1 is that the added amount of 4-hydroxycyclohexanecarboxylic acid is 1.8 g.

[0027] Example 4 The only difference between this embodiment and embodiment 1 is that the added amount of 4-hydroxycyclohexanecarboxylic acid is 3 g.

[0028] Example 5 The only difference between this embodiment and embodiment 4 is that the preparation method of the filler includes the following steps: 1.2 g of 4-hydroxycyclohexanecarboxylic acid and 0.3 g of poly(1,4-butylene adipate)diol are added into 500 mL of methanol for dissolution, 60 g of bentonite is added, and the mixture is mixed at 25° C. for 5 h, and the filler is obtained after drying.

[0029] Example 6 The only difference between this embodiment and embodiment 5 is that the added amount of poly(1,4-butylene adipate diol) is 3 g.

[0030] Example 7 The only difference between this embodiment and embodiment 5 is that the added amount of poly(1,4-butylene adipate diol) is 0.6 g.

[0031] Example 8 The only difference between this embodiment and embodiment 5 is that the added amount of poly(1,4-butylene adipate diol) is 1.2 g.

[0032] Comparative Example 1 The only difference between this comparative example and Example 1 is that the filler is bentonite.

[0033] Comparative Example 2 The only difference between this comparative example and Example 1 is that 4-hydroxycyclohexanecarboxylic acid is replaced by an equal amount of poly(1,4-butylene adipate diol).

[0034] The suspension rates of the pesticide preparations prepared in Examples 1 to 8 and Comparative Examples 1 to 2 were respectively tested according to Method 3 in GB / T 14825-2006 “Method for Determination of Suspension Rate of Pesticide”; the stability of the pesticide preparation was determined according to the test method for granular preparations in GB / T 19136-2021 “Method for Determination of Thermal Storage Stability of Pesticide”, wherein the suspension rate was determined after storage in a constant temperature box at 54°C for 14 days; the test results are shown in Table 1.

[0035] Table 1 Pesticide formulation test results

[0036] Compared with Example 1, in Comparative Example 1, 4-hydroxycyclohexanecarboxylic acid is not added to the filler, and in Comparative Example 2, the filler is composed of bentonite and poly(1,4-butylene adipate diol). As a result, the suspension rate of the pesticide preparations in Comparative Examples 1 and 2 and the suspension rate after 14 days at 54° C. are lower than those in Example 1, indicating that bentonite and 4-hydroxycyclohexanecarboxylic acid can improve the dispersibility and stability of the fluopyram-containing pesticide preparation.

[0037] Compared with Example 1, the mass ratio of bentonite and 4-hydroxycyclohexanecarboxylic acid was changed in Examples 3 to 4. As a result, the suspension rate of the pesticide preparation in Examples 3 to 4 and the suspension rate after 14 days at 54° C. were higher than those in Example 1, indicating that when the mass ratio of bentonite and 4-hydroxycyclohexanecarboxylic acid was 10:0.3 to 0.5, the dispersibility and stability of the fluopyram-containing pesticide preparation could be further improved.

[0038] Compared with Example 4, different masses of poly(1,4-butylene adipate diol) were added as fillers in Examples 5 to 8. As a result, the suspension rates of the pesticide preparations in Examples 7 to 8 and the suspension rates after 14 days at 54° C. were higher than those in Examples 4 to 6, indicating that when the addition amount of poly(1,4-butylene adipate diol) was 1% to 2% of the mass of bentonite, the dispersibility and stability of the fluopyram-containing pesticide preparations could be further improved.

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pesticide preparation containing fluopyram, characterized in that: The raw materials include the following components in parts by weight: 30-40 parts of fluopyram, 10-20 parts of menthyl acetate, 8-10 parts of dispersant, 1-3 parts of disintegrant, 2-4 parts of wetting agent, 1-2 parts of binder, and 20-30 parts of filler; The filler includes a carrier and 4-hydroxycyclohexanecarboxylic acid; the mass ratio of the carrier to the 4-hydroxycyclohexanecarboxylic acid is 10:0.2-1.

2. A pesticide preparation containing fluopyram according to claim 1, characterized in that: The mass ratio of the carrier to the 4-hydroxycyclohexanecarboxylic acid is 10:0.3-0.

5.

3. A pesticide preparation containing fluopyram according to claim 1, characterized in that: The filler also includes polybutylene adipate diol-1,4-diol.

4. A pesticide preparation containing fluopyram according to claim 3, characterized in that: The addition amount of the poly(1,4-butylene adipate diol) is 1% to 2% of the carrier mass.

5. The pesticide preparation containing fluopyram according to claim 1, characterized in that: The preparation method of the filler comprises the following steps: adding 4-hydroxycyclohexanecarboxylic acid into methanol to dissolve it, adding a carrier to mix, and drying to obtain the filler.

6. The pesticide preparation containing fluopyram according to claim 1, characterized in that: The carrier includes one or more of bentonite, diatomaceous earth, kaolin, montmorillonite and clay.

7. The pesticide preparation containing fluopyram according to claim 1, characterized in that: The disintegrant includes one or more of urea, sodium bicarbonate and ammonium sulfate.

8. The pesticide preparation containing fluopyram according to claim 1, characterized in that: The wetting agent includes one or more of methyl taurate, sodium lauryl sulfate, and laurate.

9. The pesticide preparation containing fluopyram according to claim 1, characterized in that: The binder includes one or two of hydroxymethyl cellulose and starch.

10. Use of the pesticide preparation containing fluopyram according to any one of claims 1 to 9 in preventing and controlling crop diseases.

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