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Preparation method of pesticide granules

A technology for granules and pesticides, applied in the field of pesticides, can solve the problems of single structure, insignificant effect, and short duration of active ingredients of pesticides, and achieve the effects of enhancing drug efficacy, improving slow-release performance, and enhancing crop stress resistance.

Inactive Publication Date: 2018-09-11
方建波
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a method for preparing pesticide granules in view of the problems that the structure of the current pesticide granules is single, the effect is not obvious in the process of preventing and controlling crop diseases and insect pests, and the duration of the active ingredients of pesticides is short.

Method used

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  • Preparation method of pesticide granules

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preparation example Construction

[0021] A preparation method of pesticide granules, the preparation method comprising the steps of:

[0022] (1) Take deer vine, remove leaves, rinse with tap water and sterile water for 3 to 4 times, then rinse with sodium hypochlorite solution with a volume fraction of 8 to 10% for 1 to 3 minutes, and rinse with sterile water for 3 to 4 times, Defoliated defoliation defoliation;

[0023] (2) According to the mass ratio of 1:5~6, put Dephyllodes defoliator in solid medium, incubate at a constant temperature in an incubator with a temperature of 25~28°C for 3~5 days, pick the mycelia with the largest diameter, press The mass ratio is 1:3~4, put the mycelium with the largest bacterial diameter and the liquid medium into the container for mixing, put it in a shaker, and keep it at a temperature of 25~28°C, RH75~85%, light:darkness=12 h: 12 h, ferment at 100-120 r / min for 7-9 days, filter to obtain filter silk;

[0024] (3) Crush the filter silk, pass through a 100-120 mesh siev...

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Abstract

The invention belongs to the technical field of pesticide and in particular relates to a preparation method of pesticide granules. The preparation method comprises the following steps: taking derris trifoliata and removing leaves; washing and rinsing with a sodium hypochlorite solution; then washing for 3 to 4 times to obtain treated derris trifoliate without the leaves; putting the derris trifoliate without the leaves into a solid culture medium and culturing; taking the biggest hyphae and mixing the biggest hyphae and a liquid culture medium; putting a mixture into a shaking table and fermenting; filtering to obtain filtered hyphae; crushing the filtered hyphae, sieving and drying to obtain a dry matter; mixing the dry matter and methanol; carrying out ultrasonic extraction and filtering; repeatedly extracting and combining filtrate; carbonizing pre-treated straws and mixing carbide and total filtrate; immersing and filtering to obtain a dried matter; mixing polyvinyl alcohol and water; heating to 70 to 80 DEG C; stirring and filtering to obtain filtrate; mixing the filtrate and urea powder; stirring and concentrating to obtain a concentered matter; mixing the dried matter and the concentered matter and conveying a mixture into an extruding and kneading device; then granulating, drying and separating and sieving to obtain the pesticide granules.

Description

technical field [0001] The invention belongs to the technical field of pesticides, in particular to a method for preparing pesticide granules. Background technique [0002] With people's attention to the living environment, in the development of pesticide products, special attention is paid to the development of low-toxicity, low-residue and high-efficiency pesticide varieties. At the same time, pesticide formulations are also developing towards solid granulation and water-based formulations, and granulated and water-based formulations have been gradually developed to replace emulsifiable concentrates, powders and other formulation products. Pesticide granules include water-dispersible granules and water-soluble granules. Due to their environmental friendliness, pesticide granules have developed rapidly in recent years. Granules are granular preparations made by combining pesticides with suitable excipients. Generally, they can be divided into soluble granules, suspension g...

Claims

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Application Information

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IPC IPC(8): A01N25/08A01N25/12A01N65/20A01N63/04A01P7/04C05G3/02C05G3/60
CPCA01N25/08A01N25/12A01N63/30A01N65/00A01N65/20C05C9/00C05G3/60Y02A50/30
Inventor 方建波徐扣华
Owner 方建波
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