Method for biologically controlling Bactrocera minax (Enderlein)

Abstract

The invention relates to the technical field of agricultural pest control, in particular to a method for biologically controlling Bactrocera minax (Enderlein). According to the method, bacteria bait is prepared from ascosphaerales to induce Bactrocera minax (Enderlein) to eat; ascosphaerales can survive in the intestinal canals of Bactrocera minax (Enderlein), germinate and expand into spheres in the intestinal canals, and stretch out of germ tubes to form hyphae and generate spores; the hyphae perforate the hypodermal cells of the inner walls of the intestinal canals; lesions occur in fat body tracheae and muscles; and the hyphae multiply enormously in body cavities to kill Bactrocera minax (Enderlein). The method provided by the invention can be used for solving the problem that conventional pesticides can hardly kill Bactrocera minax (Enderlein) and can cause pesticide residue pollution, reduces environmental pollution caused by mass and repeated application of chemical pesticides, and protects production, users and other beneficial organisms; and the raw material is easy to obtain, the preparation is simple, the control effect is high, and the popularization is easy.

Description

technical field [0001] The invention relates to the technical field of agricultural pest control, in particular to a method for biological control of Bactrocera dorsalis. Background technique [0002] Citrus is the world's largest fruit and the fifth largest internationally traded agricultural product. After 2008, my country's citrus cultivation area and output rank first in the world, and citrus has been listed as one of my country's superior agricultural products. Ensuring the quality and safety of citrus will be an important prerequisite and guarantee for citrus products to expand domestic and foreign markets, but my country's citrus However, the quality safety and export trade situation are not optimistic. Due to the extensive use of chemical pesticides in the prevention and control of citrus pests, citrus in my country is characterized by high pesticide residues and poor fruit quality. Moreover, developed countries such as the European Union, Japan, and the United States...

AI Technical Summary

Problems solved by technology

After 2008, my country's citrus cultivation area and output rank first in the world, and citrus has been listed as one of my country's superior agricultural products. Ensuring the quality and safety of citrus will be an important prerequisite and guarantee for citrus products to expand domestic and foreign markets, but my country's citrus However, the quality safety and export trade situation are not optimistic. Due to the extensive use of chemical pesticides in the prevention and control of citrus pests, citrus in my country is characterized by high pesticide residues and poor fruit quality. Moreover, developed countries such as the European Union, Japan, and the United States have set strict pesticide maximum limits. Technical Barriers to Residue Limits

The content of sex pheromones in insects is very small, so it is very difficult to collect sex pheromones

And because Bactrocera citrus is a monophyletic insect, only one generation occurs a year, and the diapause period of eggs and pupae is relatively long, and adults are difficult to raise in the laboratory, which makes the research on sex attractants of Bactrocera citrus relatively difficult. In its infancy