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Lythidathion microcapsule suspending agent and preparation method

A technology of microcapsule suspension agent and thiazophos, which is applied in the fields of botanical equipment and methods, insecticides, acaricides, etc. The effect of improving the effect, improving the control effect, and improving the stability

Inactive Publication Date: 2011-11-16
谭晓辉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the dosage forms of thiazophos registered in the Ministry of Agriculture are traditional dosage forms such as granules and emulsifiable concentrates. This dosage form has a short duration of efficacy and cannot control the release rate of pesticide active substances.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] According to thiazole phosphorus 10g, add ethylene glycol 20g and 5g Tween 80 emulsifier to make capsule core material composition; Press capsule core composition 35g and urea-formaldehyde resin preform 14g (2.5: 1) ratio, be prepared into microcapsules Polymerization-cured product; finally add 4g of emulsifier OP-5 and 0.1g of xanthan gum to mix, and make up 100% weight with 46.9g of water, and prepare 100g of thiazole phosphorus microcapsule suspension according to the preparation process.

Embodiment 2

[0043] Press Thiazophos 15g, add toluene 15g, 2g Tween 80 and 3g Nongru 1601 emulsifier to make capsule core material composition; Press capsule core composition 35g and urea-formaldehyde resin preform 10g (3.5: 1) ratio, prepare micro Polymerization-solidification of capsules; finally add 4g of emulsifier NP-10 and 1g of gelatin to mix, and make up 100% weight with 50g of water, and make 100g of thiazolphos microcapsule suspension according to the preparation process.

Embodiment 3

[0045] According to thiazole phosphorus 20g, add xylene 20g, 2g Nongru 700 and 1g Nongru 1601 emulsifier to make the capsule core substance composition; press the capsule core composition 43g and urea-formaldehyde resin preform 14.33g (3: 1) ratio, prepare Polymerization-cured product of microcapsules; finally add 4g of emulsifier NP-10 and mix, and make up 100% weight with 38.67g of water, and make 100g of thiazophos microcapsule suspension according to the preparation process.

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PUM

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Abstract

The invention discloses a lythidathion microcapsule suspending agent and a preparation method, which mainly aims to provide a lythidathion insecticide which has a good effect of preventing and controlling crop nematodes and long lasting period. The lythidathion microcapsule suspending agent is mainly prepared by mixing the following raw materials in part by weight: 30 to 75 parts of capsule core composition, 10 to 20 parts of urea formaldehyde resin preformed object, 2 to 5 parts of emulsified dispersing agent and 2 to 55 parts of water, wherein the capsule core composition is prepared by mixing and stirring homogeneous phase solution formed by mixing lythidathion and organic solvent according to a weight ratio of 1:(1-3.5) and the emulsified dispersing agent according to a weight ratio of (5-20):1. The lythidathion microcapsule suspending agent is good in the prevention and control of the crop nematodes, long in lasting period and small in environmental pollution, and is used safely.

Description

technical field [0001] The invention relates to a pesticide dosage form, in particular to an agricultural thiazophos microcapsule suspension and a preparation method. Background technique [0002] Thiazophos is a broad-spectrum nematicide, acaricide and soil insecticide with strong contact activity, and has obvious systemic poisoning effect on a variety of nematodes, insects and mites, and has developed resistance to traditional insecticides Some pests also have high activity. The nematodes that can be controlled include about 20 kinds of ectoparasitic nematodes on aboveground stems and leaves, endoparasitic nematodes on underground plant roots, semi-endoparasitic nematodes, and ectoparasitic nematodes. The agricultural and health pests that can be controlled include more than 30 species of Thysanoptera, Hemiptera, Lepidoptera, Coleoptera, Diptera, and Orthoptera. Acarids include cotton red spider mite, orange panonychia, etc., and are also effective against gastropods and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/28A01N25/04A01N57/08A01P5/00A01P7/02A01P7/04
Inventor 谭晓辉
Owner 谭晓辉
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