Fungal pyrethroid compound mosquito-killing agent for acidic tea garden soil and preparation method thereof

Abstract

The invention discloses a special fungal pyrethroid compound mosquito killing agent for acidic tea garden soil and a preparation method thereof. The pyrethroid 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 aminomycetin as raw materials and taking toluene and fulvic acid saturated aqueous solution as process auxiliary materials, the component A is finally obtained through two-stage polycondensation, extraction,pickling, sealing and dehydration; and the component B is beef powder and sweet potato starch where Guiyang pythium fungi with a concentration of 1*10<7> cfu / g-1*10<8> cfu / g are preserved. The special fungal pyrethroid compound mosquito killing agent for acidic tea garden soil has the advantages of having no obvious poison to the human body, adapting to acidic soil, performing double killing of adults and larvae, having good hydrophilicity, easy degradation, having nutritional auxiliary functions, and having a fundamental solution to target pests.

Description

technical field [0001] The invention relates to the technical field of mosquito control, in particular to a fungus permethrin compound mosquito killer specially used for acidic tea garden soil and a manufacturing method thereof. Background technique [0002] There are three elements in the soil environment suitable for tea growth: ① soil acidity: tea tree is a typical special economic crop that likes acidic soil. Unable to form an effective economic output. ②The soil is not waterlogged: Although the tea tree likes to be moist, it is afraid of waterlogging. If there is too much water in the soil, poor ventilation will hinder the development of the root system of the tea tree, and in severe cases, it will cause rotten or dead roots. Generally, tea trees have strict requirements on rainfall. The rainfall in a year is relatively average, and the annual rainfall is about 1500 mm. Insufficient or excessive precipitation can also affect the growth of tea trees. ③Deep soil: Tea ...

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

[0004] At present, there is no special pyrethrin for tea planting on the market. As we all know, most of the commercially available pyrethrins are neutral, and generally after undergoing alkali washing and acid neutralization, they appear as saturated non-polar insoluble organic matter, and cannot be compatible with wet soil when used in soil. Solubility, slow degradation and excessive accumulation on the soil surface will lead to soil compaction, making it difficult for rainwater to infiltrate, destroying long-term soil fertility;