Compound gelatinization pyrethrin for desert green planting and preparation method thereof

Abstract

The invention discloses compound gelatinization pyrethrin for desert green planting and a preparation method thereof. The pyrethrin is divided into two components A and B. Taking ethelene glycol monophenyl ether, pyridine, ammonium bicarbonate aqueous solution with a mass concentration of 10%, nickel powder, deionized water, trans-dichlorochrysanoyl chloride and perfluoropolyether oil as raw materials and taking toluene, diluted hydrochloric acid with a mass concentration of 10% and calcium hydroxide solution with a mass concentration of 10% as process auxiliary materials, the component A is finally obtained through two-stage polycondensation, extraction, alkali washing, pickling, neutralization and dehydration. Taking corn starch and rice bran as raw materials, the component B is obtainedby filtering out solid content after fermentation under the action of a bacillus licheniformis; and the pyrethrin is a pectin-based gel peptone finally obtained by mixing the components A and B and then reacting with calcium ions in the component A through nicandra seed grinding. The compound gelatinization pyrethrin has the advantages of being specially suitable for desert environment, performing double killing of adults and larvae, having a long-lasting effect, performing fundamental solution to target pests, having a moisture slow release function and having a nutritional supplement function.

Description

technical field [0001] The invention relates to the technical field of mosquito control, in particular to a compound gelled pyrethrin for desert greening planting and a manufacturing method thereof. Background technique [0002] Pyrethrins are a class of broad-spectrum insecticides that can control a variety of pests, and their insecticidal toxicity is 10-100 times higher than that of older generation insecticides such as organochlorines, organophosphorus, and carbamates. Pyrethroids have a strong contact effect on insects, and some species have stomach poisoning or fumigating effects, but none of them have systemic effects. Its mechanism of action is to disrupt the normal physiology of insect nerves, causing them to die from excitement, convulsions, and paralysis. Pyrethroids are safe for humans and animals because of their small dosage and low concentration, and they have little pollution to the environment. Its disadvantages are mainly high toxicity to fish and damage t...

AI Technical Summary

Problems solved by technology

Its disadvantage is mainly that it is highly toxic to fish, and it is also harmful to some beneficial insects. Long-term repeated use will also lead to resistance of pests

[0003] Commonly used pyrethroids can only kill adults but not larvae or eggs, resulting in repeated occurrence of insect pests, and the drug resistance of daughters will become stronger and stronger, unable to cure insect pests; conventional pyrethroids are also easily destroyed by microorganisms in the soil. Natural degradation, so the insecticidal effect is not long-lasting, and it is troublesome to use repeatedly; its main disadvantage is that it is highly toxic to fish and harmful to some beneficial insects, which also limits the promotion of conventional mosquito killers