Biopesticide for controlling anoplophora chinensis and preparation method of biopesticide

Abstract

The invention provides a biopesticide for controlling anoplophora chinensis and a preparation method of the biopesticide. According to the biopesticide, an aoplophora chinensis egg control agent is applied in the egg stage, an aoplophora chinensis larva control agent is applied in the larval stage, an adult anoplophora chinensis control agent is applied in an adult stage, and control of the anoplophora chinensis is completed. The control agents of different formulas are applied in different growth stages of the anoplophora chinensis, and the pertinence is high. Bacillus thuringiensis fermentation broth, adonis extract and absolute ethanol are used cooperatively in the egg stage of the anoplophora chinensis, the killing rate of eggs of the anoplophora chinensis can reach 100% or higher; inthe larval stage, the bacillus thuringiensis fermentation broth, meliae cortex extract and absolute ethanol are used cooperatively, the killing rate of larvae of the anoplophora chinensis can reach 97% or higher; in the adult stage, the bacillus thuringiensis fermentation broth, hydrogen peroxide, absolute ethanol and the adonis extract are used cooperatively, and the killing rate of the adult anoplophora chinensis can reach 98% or higher. The number of the anoplophora chinensis can be effectively controlled, application of toxic chemical pesticides such as zinc phosphide, aluminum phosphide and the like is avoided, and environmental pollution is reduced.

Description

technical field [0001] The invention belongs to the technical field of pesticides and insecticides, and in particular relates to a biopesticide for controlling long beetle and a preparation method thereof. Background technique [0002] Star beetle mainly harms tung tree, apple, pear, poplar, elm, willow and other trees, but it is an important borer pest of tung tree in urban greening trees. Because of its strong growth potential, large crown, and strong adsorption capacity for pollutants, it is one of the important landscaping tree species in my country. In recent years, the harm and occurrence of star beetles have become more and more serious, and they have flooded in many places, causing a large number of deaths or poor growth and dying, causing huge losses to the ecological environment and urban greening. , A major pest in the construction and development of ecological cities. [0003] At present, chemical control is the most widely used and direct control method in pro...

AI Technical Summary

Problems solved by technology

However, due to the long life history of the star beetle, its eggs, larvae and pupae all live in the trunk, the individuals are scattered, live alone, and are rarely affected by external adverse conditions, so the control effect is not ideal

At the same time, paulownia is generally used as a garden or urban greening tree species. The use of a large amount of chemical pesticides will undoubtedly cause pollution to the ecology and human settlements and lack of sustainability, which is contrary to the purpose of people's cultivation of paulownia to improve the environment.