A kind of biocontrol bacteria and its application in the prevention and control of crop vine blight

Abstract

The invention relates to a biocontrol fungus and its application in the prevention and treatment of creeping blight. The biocontrol fungus CGMCC NO.15764 of the present invention can effectively prevent and control vine blight of crops, especially for watermelon vine blight and melon vine blight, and has a growth-promoting effect on watermelon and melon. The prevention and control of watermelon blight and melon blight and the planting of watermelon and melon; moreover, compared with the chemical agents of the prior art, the biocontrol bacteria of the present invention are nontoxic to humans and animals, do not pollute the environment, have no residue, and have Conducive to the sustainable development of the ecological environment.

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] Watermelons and muskmelons play a pivotal role in the global agricultural crop production, and have certain economic value and economic benefits. However, a large amount of watermelon and muskmelon production reduction caused by various diseases has brought a lot of economic losses every year, among which blight is one of the main diseases that affect the yield and quality of watermelon and muskmelon. [0003] Watermelon blight and melon blight are a devastating disease caused by Mycosphaerlla melonis, also known as "black rot", which harms the leaves, stems, fruits, etc. of watermelons and melons. Stems suffer the most. Melonella coccidioides is a fungus belonging to the subphylum Ascomycota. The conidia are short round or cylindrical, colo...

AI Technical Summary

Problems solved by technology

Although chemical agents can control watermelon blight and muskmelon blight to a certain extent, they will also lead to excessive chemical residues in the soil, and the chemicals contained in watermelon and melon 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 watermelon vine blight and muskmelon vine blight, but the selection 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, watermelon and muskmelon are high economic value crops; To the 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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