Natural pyrethrosin emulsitiable solution preparation

A technology of natural pyrethrin and pyrethrin, which is applied in the directions of biocides, animal repellents, plant growth regulators, etc., can solve problems such as environmental pollution and human harm, achieve low toxicity and solve the effect of pesticide residues

Inactive Publication Date: 2003-07-16
红河森菊生物有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the existing pesticide technical materials and pesticide preparations are organochlorines, organophosphorus, carbamates or pyrethroids. These pesticide residues after use have brought many harm

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Accurately weigh and analyze the content of pyrethrins in refined natural pyrethrins, add 0.7% of the content of pyrethrins in the original drug, BHT, stir well, and then add 5% of the content of pyrethrins in the original drug. Stir and dissolve the octine, dilute the emulsifier (2201) with an appropriate amount of acetone solution, then add an emulsifier with 15% of the pyrethrin content in the original drug, and then add petroleum ether until the effective component is 10%, to obtain a natural pyrethrin emulsifiable concentrate preparation.

Embodiment 2

[0015] Accurately weigh and analyze the content of pyrethrins in refined natural pyrethrins, add 0.3% of pyrethrins in the original medicine, tannic acid, mix well, and then add 8% of pyrethrins in the original medicine Stir the PB to dissolve, dilute the emulsifier (5201) with an appropriate amount of acetone solution, then add an emulsifier with 20% of the pyrethrin content in the original drug, and then add petroleum ether until the effective component is 5%, to obtain a natural pyrethrin emulsifiable concentrate preparation.

[0016] The natural pyrethrum former medicine in embodiment 1,2 is prepared according to the following method:

[0017] Add 6-12 times the weight of petroleum ether solvent to the pyrethrum extract, then add 3-6‰ stabilizer of the pyrethrum extract weight, and dissolve at 40-60°C for 0.5-1.5 hours; at 30-40°C The filtrate is obtained by filtering under low temperature; the filtrate is concentrated at a temperature of 70-80°C and a vacuum of 0.2-0.7, a...

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PUM

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Abstract

A natural pyrethrin emulsified oil as agricultural chemical is prepared from pyrethrin, BHT or tannic acid, PB, emulsifier, and petroleum ether through proportioning and sequential mixing. Its advantages are high effect, no residue and very low toxicity.

Description

technical field [0001] The present invention relates to pesticide preparations, in particular to natural pyrethrin emulsifiable concentrate preparations. Background technique [0002] Most of the existing pesticide raw materials and pesticide preparations are organochlorines, organophosphorus, carbamates or pyrethroids. After these pesticides are used, the pesticide residues bring many harms to humans, seriously pollute the environment, and kill insects. The resistance to insecticides is getting stronger and stronger, and only by gradually increasing the dosage of insecticides can the pests be overcome. Contents of the invention [0003] The object of the present invention is to provide a high-efficiency natural pyrethrin emulsifiable concentrate preparation without pesticide residue, harmless to humans and animals. [0004] Natural pyrethrin emulsifiable concentrate preparation of the present invention is to make with following raw material and method: [0005] Use refi...

Claims

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Application Information

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IPC IPC(8): A01N25/04A01N53/00
Inventor 王怀勇张夏亭
Owner 红河森菊生物有限责任公司
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