A kind of bactericidal composition containing bacillus amyloliquefaciens and azoxystrobin and its application

Abstract

The invention discloses a bactericidal composition containing bacillus amyloliquefaciens and azoxystrobin and application thereof. The composition uses bacillus amyloliquefaciens and azoxystrobin as active components, and the mass ratio thereof is 5:1-1:5 . The invention also discloses the preparation method of the agricultural formulation type wettable powder and suspension concentrate of the bactericidal composition and its application in preventing and treating rice blast. Compared with a single agent, the fungicidal composition of the present invention has obvious synergistic effect on the control of rice blast, and can significantly improve the control effect; reduces the potential drug resistance risk of rice blast fungus to azoxystrobin and bacillus; reduces The use of chemical pesticides effectively reduces environmental pollution and residues of agricultural products, and is safe for humans, animals, beneficial organisms, and the environment, so it can be widely used in the prevention and control of rice blast.

Description

technical field [0001] The invention belongs to the field of pesticides, and in particular relates to a method containing Bacillus amyloliquefaciens isolated from rice rhizosphere soil ( Bacillus amyloliquefaciens ) and azoxystrobin and its application in the control of rice blast. Background technique [0002] Rice blast is an important disease of rice in my country, and it is one of the most serious threats to the high yield of rice. It can cause a large reduction in yield, in severe cases, a 40-50% reduction in yield, or even no harvest. At present, the control of rice blast is mainly through cultivating disease-resistant varieties and spraying chemical pesticides. However, due to the simplification of disease-resistant varieties, the harm of chemical pesticides, and the emergence of drug resistance of pathogenic bacteria, the control of rice blast is limited to a certain extent. Therefore, biological control has attracted more and more attention. [0003] Bacillus amyl...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to: aim at a series of problems in the current production that a large number of chemical pesticides are used to prevent and control rice blast, resulting in serious environmental pollution, excessive pesticide residues, decline in rice quality, and enhanced drug resistance, resulting in decreased control efficiency and even failure of control. An environmentally friendly and safe compound bactericidal composition that can improve drug efficacy, prolong the use time of agents, reduce costs, have significant synergistic effects, and have better control effects on rice blast

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