Biocontrol bacterium and application thereof in preventing and control of vine blight

Abstract

The invention relates to biocontrol bacterium and application thereof in preventing and control of vine blight. The biocontrol bacterium CGMCC NO.15764 can be used for effectively preventing and controlling the vine blight of crops, especially can be used for obviously preventing and controlling the vine blight of watermelon and melon, can accelerate the growth of the watermelon and melon, and canbe applied to the preventing and controlling of the vine blight of the crops and the planting of the watermelon and melon. Compared with the chemical agent of the prior art, the biocontrol bacteriumhas the advantages that the poison to human and livestock is avoided, the pollution to environment is avoided, the residue is avoided, and the sustained development of ecological environment is realized.

Description

technical field [0001] The invention relates to a biocontrol bacterium and its application in the prevention and treatment of creeping blight, and belongs to the technical field of crop biological control. Background technique [0002] Watermelon occupies a pivotal position in the global agricultural crop production, and has certain economic value and economic benefits. However, a large number of economic losses are caused by various diseases of watermelon every year, among which the blight is one of the main diseases affecting the yield and quality of watermelon. [0003] Melon blight is a devastating disease caused by Mycosphaerlla melonis, also known as "black rot", which harms the leaves, stems, and fruits of watermelons and melons. Heavy. Melonella coccidioides is a fungus belonging to the subphylum Ascomycota. The conidia are short round or cylindrical, colorless and transparent, with rounded ends. They are monospores at first, and then produce 1 to 2 septa, and the ...

AI Technical Summary

Problems solved by technology

Although chemical agents can prevent and control melon blight to a certain extent, they will also lead to excessive chemical residues in the soil. Chemical agents contained in watermelon will also threaten human health and bring many negative effects

Breeding of disease-resistant varieties is also one of the methods to prevent and control melon blight, but the breeding of disease-resistant varieties often requires long-term consumption

In agricultural control, crop rotation is often used to prevent and control vine blight, but there are certain difficulties in practice. First, melon belongs to high economic value crops; Expected purpose; the third is that planting most of the non-host plants can not reduce the number of pathogenic bacteria in the soil, and the non-host root exudates can still provide nutrients for the survival of pathogenic bacteria

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