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Pesticide emulsifiable concentrate preparation

A technology of pesticides and preparations, applied in the direction of insecticides, acaricides, biocides, etc., can solve the problems of competition between oil and people for food, high prices, etc., and achieve high safety, good safety and environmental friendliness

Active Publication Date: 2009-12-23
QINGDAO STAR CROPSCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing patent documents, it has been reported that vegetable oil or its derivatives are used as pesticide solvents, such as soybean oil, corn oil, rapeseed oil, cottonseed oil, soybean oil methyl ester, etc. Disadvantages such as competition for food and higher prices

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Weigh 50 kg of avermectin, 660 kg of D-limonene, 100 kg of isopropanol, and 50 kg of ethanol and mix them in the reaction kettle. After stirring and dissolving, add 40 kg of polyoxyethylene polyoxypropylene block copolymer, C12 30 kilograms of -14 alcohol polyoxyethylene ether, 50 kilograms of linear calcium dodecylbenzene sulfonate, 20 kilograms of epoxy soybean oil, stir and mix, obtain 1000 kilograms of 5% abamectin emulsifiable concentrates.

[0029] Use the abamectin emulsifiable concentrate of this embodiment to prevent and treat citrus spider mite, add water to dilute the field spray according to 5 grams / mu of active ingredient, the control effect of 2 days and 5 days after the medicine is respectively 84.1% and 92.4%, and application aromatic hydrocarbon solvent The avermectin emulsifiable concentrate prepared by xylene was used according to the same method in the same dose, and the control effects were 73.5% and 79.6% respectively 2 days and 5 days after the dru...

Embodiment 2

[0031] Weigh 50 kg of thiamethoxam, 675 kg of α-pinene, 120 kg of N-methylpyrrolidone, and 20 kg of n-butanol and mix them in the reaction kettle. After stirring and dissolving, add 50 kg of ethylene glycol polyoxyethylene ether, alkane 30 kilograms of polyoxyethylene sorbitan monooleate, 40 kilograms of straight-chain triethylamine dodecylbenzenesulfonate, 15 kilograms of 2,6-di-tert-butyl p-cresol, stir and mix evenly, obtain 1000 Kg 5% Thiamethoxam EC.

[0032] Use the thiamethoxam emulsifiable concentrate of the present embodiment to prevent and treat rice planthoppers, add water to dilute and spray at 1.5 g / mu of active ingredient, and the control effects of 3 days and 7 days after the drug are respectively 88.9% and 97.4%; The thiamethoxam EC prepared from toluene was used in the same way at the same dosage, and the control effects were 64.1% and 70.3% at 3 days and 7 days after treatment. It can be seen that the thiamethoxam emulsifiable concentrate of this example has...

Embodiment 3

[0034] Weigh 10 kg of avermectin, 50 kg of thiamethoxam, 680 kg of α-pinene, 100 kg of N-methylpyrrolidone, and 100 kg of isopropanol and mix them in the reaction kettle. After stirring and dissolving, add polyoxyethylene poly 35 kg of oxypropylene block copolymer, 35 kg of castor oil polyoxyethylene ether, 50 kg of alkyl polyglycol ether phosphate, 10 kg of 2,6-di-tert-butyl p-cresol, 20 kg of epoxy soybean oil , Stir and mix evenly to obtain Abamectin·thiamethoxam emulsifiable concentrate.

[0035] Using the abamectin-thiamethoxam emulsifiable concentrate of the present embodiment to prevent and treat pear psyllids, add water to dilute the spray by 1000 times, the control effect of 2 days and 5 days after the medicine is respectively 83.4% and 94.6%, and the application of aromatic hydrocarbon solvent xylene The prepared abamectin-thiamethoxam emulsifiable concentrate was used in the same way at the same dosage, and the control effects on pear psyllid were 69.2% and 81.1% at...

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PUM

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Abstract

The invention provides a pesticide emulsifiable concentrate preparation which comprises the following components by weight percent: 1-70 percent of pesticide active ingredients, 0-8 percent of stabilizer, 1-25 percent of cosolvent, 5-20 percent of emulsifier and the balance of plant source solvent, wherein the plant source solvent is one or more of alpha-pinene, D-limonene and Jatropha curcas oilmethyl. Compared with the prior art, the pesticide emulsifiable concentrate preparation does not contain any arene organic solvents or other non-environment-protection dissolving assistant, is friendly and safe for the environment, has high security for human and crops, favorable safety in the process of production, storage, transportation and use as well as better integrative preventing effect than that of a pesticide emulsifiable concentrate preparation prepared by applying arene solvents.

Description

technical field [0001] The invention relates to a pesticide emulsifiable concentrate preparation, in particular to a pesticide emulsifiable concentrate preparation which is highly safe for people and crops and friendly to the environment. Background technique [0002] EC is one of the traditional basic dosage forms of pesticides. Compared with other pesticide formulations, EC has the advantages of high content of active ingredients, good storage stability, and simple production process. Moreover, since EC contains a large amount of organic solvents, it is easy for the drug solution to be used on crops. Wetting and spreading on the insects, insects and weeds makes it easier for the pesticide to penetrate into the crops, insects and weeds, so it has better control effect. [0003] However, the production of emulsifiable pesticides requires the use of a large amount of organic solvents, mainly aromatic solvents such as benzene, toluene, and xylene, and polar solvents such as N,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/04A01P7/04A01P7/02A01P1/00A01P3/00A01P13/00A01N49/00A01N65/18
CPCY02A50/30
Inventor 王文忠孙华英曹明章孔建李谱超王新军
Owner QINGDAO STAR CROPSCI
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