AR156 composition for preventing and controlling soil-borne diseases of vegetable

Abstract

The invention provides a biological control compound microbial inoculum AR156 mixture for controlling vegetable soil-borne disease, belonging to the technical field of plant disease biological control. The microbial inoculum consists of three biological control bacteria of AR156(Bacillus sp.), XY21(Serratia sp.) and SM21 (Bacillus sp.). The three bacteria go through shaking culture respectively in PDA culture fluid under 37 DEG C and 180rpm for 20 to 24 hours, taking 4000g to be centrifugated for 10min, wetting bacteria and thallus preservative fluid are taken and made into microbial inoculum according to 1:40 (g / ml), and then evenly mixed according to the ratio of 1: 1: 1, the total concentration of viable bacteria in finished products is that 1 is multiplied by 10<9> to 1 is multiplied by 10<12>cfu / ml. The prevention effects on a potato family crop granuville wilt greenhouse and fields are respectively more than 90 percent and 70 percent, the prevention effect on potato family crop plagues is more than 65 percent, the prevention effect on vegetable root knot nematode diseases is 60 to 85 percent, the production can be increased by 50 to 200 percent, meanwhile the microbial inoculum can improve the phenomenon of soil hardening.

Description

1. Technical field [0001] The invention relates to a compound biocontrol agent AR156 mixture for preventing and treating soil-borne diseases of vegetables, which belongs to the technical field of disease prevention and treatment of crops, and is specially used for the pollution-free prevention and control of various soil-borne diseases of vegetables. 2. Technical background [0002] Plant soil-borne diseases are mostly soil-inhabiting bacteria, such as Ralstonia solanacearium that causes bacterial wilt of Solanaceae crops, Fusarium oxysporium and Verticillium dahlaei that cause a variety of plant blight and Verticillium wilt, and the more and more serious damage in various places in recent years Root-knot nematode disease (Meloidogyne spp.) and the like. Solanaceous crop bacterial wilt is a worldwide disease, pathogenic bacteria can infect more than 50 families and more than 200 species of plants, causing economic losses of up to 12 billion US dollars worldwide; pepper bligh...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to address the defects of severe pollution and high cost of chemical pesticides currently used in the prevention and control of plant soil-borne diseases, and there is no biocontrol agent with high control effect on various plant soil-borne diseases in the prior art , to develop a compound biocontrol fungicide to prevent and control a variety of vegetable soil-borne diseases. The control effect of the fungicide can reach more than 45%, and it has a significant growth-promoting effect

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