Antagonistic bacterial strain for preventing and treating fruit tree rot and application thereof

Abstract

The invention discloses an antagonism bacterial strain preventing and treating fruit tree rot and the application of the antagonism bacterial strain. The antagonism bacterium is Bacillus pumilus XJAU-117, and the microbial preservation number is CGMCC No.9370. The Bacillus pumilus XJAU-117 is obtained from a rot branch of the walnut tree in a separation mode, the antagonism for the rot of the fruit tree is obvious and efficient, the rot pathogenic bacteria can be effectively prevented from growing, the plant disease caused by the pathogenic bacteria can be prevented and treated, and the antagonism bacterial strain is an efficient biological control potential bacterial strain with the good environmental safety and has good development and application prospects.

Description

technical field [0001] The invention relates to an antagonistic bacteria strain, in particular to a bacillus pumilus which antagonizes various pathogenic fungi of fruit tree rot disease and its application. Background technique [0002] Fruit tree rot is also known as rotten skin disease, stinky skin disease, etc., and it occurs all over the world. The rot disease mainly harms the branches and bark of the fruiting tree. When it is serious, it will cause the branches to wither, the fruiting ability will decrease, and the whole plant will die. Young trees and seedlings can also be killed, but the disease is less. In the early stage of the disease, it is not easy to identify from the outside. If you lift the skin of the branches, you can see dark brown to reddish-brown wet spots or yellowish-brown dry spots. Sometimes, the internal lesion area is already large, but it is still difficult to identify from the outside. . When the injury is severe, the cortex is rotten and necro...

AI Technical Summary

Problems solved by technology

[0004] At present, the prevention and control of fruit tree rot is mainly based on chemical control, which is costly and incomplete. Long-term, repeated and large-scale use of chemical pesticides will cause soil, water and air pollution, increase pesticide residues, and food safety problems are becoming more and more serious; and Chemical pesticides destroy the ecological environment while killing pathogenic bacteria

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