Method for preventing and controlling hot pepper epidemic disease

Abstract

The invention discloses a method of preventing pepper blight, which is that bio-antagonists and solid liquid-preserving agent together is used for treating breeding matrix; the addition weight of the solid liquid-preserving agent is 1 to 2 percent of the breeding matrix; the addition amount of the suspension liquid of the bio-antagonists is 100 to 200ml per 200g of the breeding matrix; the concentration of the suspension liquid of the bio-antagonists is 10<9>cfu / ml. By adopting the method, the survival ability of the bio-antagonists is stable; the colonization density of pepper root region of the bio-antagonists is added during the nursery stage; the pepper blight is prevented and the disease prevention effect in field is improved. In addition, the invention can also enhance seed germination rate, promote seedling growth, and be in favor of seedling growing strong; when being applied to seeding production, the invention can prevent diseases of seedling and improve seedling quality.

Description

technical field [0001] The invention belongs to plant protection, in particular to a method for preventing and treating capsicum blight by using biocontrol microorganisms. Background technique [0002] Pepper blight is a devastating soil-borne disease caused by Phytophthora capsici. Since the disease was first discovered in the United States in 1918, it has become common in pepper-growing regions of the world. At present, pepper blight causes losses of 20%-30% every year, and when it is severe, it can reach 70%-80%, or even the whole field fails to harvest. It is one of the most serious diseases in pepper production. Because the pathogenic bacteria survive in the soil for a long time, and the number of pathogenic bacteria increases year by year with crop continuous cropping, the harm becomes more and more serious. At present, there is still a lack of effective pepper blight-resistant varieties in production. The prevention and control of pepper blight mainly depends on che...

AI Technical Summary

Problems solved by technology

At present, there is still a lack of effective pepper blight-resistant varieties in production. The prevention and control of pepper blight mainly depends on chemical control, but pathogenic bacteria have developed resistance to most chemical pesticides, so there is still a lack of effective control measures in production.

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