Special coated controlled-release insecticide for peanuts and preparation method thereof

Abstract

The invention relates to the technical field of insecticides and particularly relates to a special coated controlled-release insecticide for peanuts. The insecticide comprises a structure of three layers, i.e., an inner layer, a middle layer and an outer layer, wherein the inner layer is prepared from the raw materials: phoxim, imidacloprid, chlorpyrifos, chlorantraniliprole, wheat bran, humic acid and a binder; the middle layer is prepared from the raw materials: phoxim, imidacloprid, chlorpyrifos, chlorantraniliprole and ureaformaldehyde powder; the outer layer is prepared from the raw materials: ureaformaldehyde powder and livestock and poultry fermented manure. The insecticide is applied into a fruiting layer during sowing, does not release an insecticide effect at a primary stage of generation and is subjected to coating decomposition and insecticide effect release about 50 days after the insecticide is applied into soil before the peanuts peg and pod, so that the consumption of pesticides can be lowered, non-point source pollution is prevented, underground insect pests can be effectively controlled in a high pointed manner, the loss of toxicity and pesticide toxicity of the pesticides can be avoided, the consumption of the pesticides can be lowered, the environmental pollution is lowered, the storage and transportation are safe, the processing cost is low, and the market prospect is good.

Description

technical field [0001] The invention relates to the technical field of insecticides, in particular to a peanut-specific coated controlled-release insecticide, and also relates to a preparation method of the peanut-specific coated controlled-release insecticide. Background technique [0002] Underground pests are important pests of peanuts, mainly including grubs, mole crickets, and needleworms. It mainly damages peanut pods, with a large damage ratio, which seriously reduces the yield and quality of peanuts, and the number of pest-damaged fruits is highly negatively correlated with effective yield. According to statistics, due to the harm of underground pests such as grubs, the production is generally reduced by 20%-40%, and in serious cases, the production is reduced by 70%-80%, or even no harvest. After the 1990s, with the increase of resistance, growers also increased the amount of pesticides without restriction, resulting in high toxicity and high residues of peanuts, a...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problem that highly toxic insecticides have high drug efficacy residues during the control of underground pests, affecting the quality and safety of peanuts, while low-toxic insecticides have a short duration of efficacy and low effective utilization of pesticides, this application provides a peanut The special-coated controlled-release insecticide is applied to the fruiting layer together with the sowing, and does not release the drug effect in the early stage of growth. When the peanut pods are decomposed and the drug effect is released, it can reduce the amount of pesticides and prevent non-point source pollution. , and can effectively control underground pests

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