Pesticide combination for preventing corn top rot

Abstract

The invention relates to a pesticide combination for preventing corn top rot, wherein the effective components of the pesticide combination for preventing the corn top rot comprises plant growth adjusting agents and active polysaccharides, the plant growth adjusting agents are one or two of compound nitrate phenolate and diethylaminoethyl hexanoate, and the active polysaccharides are one or two of chitosan oligosaccharide and portuguese polyene sugar. The pesticide combination for preventing the corn top rot comprises the components with part by weight: compound nitrate phenolate 0.05-90.0 parts and diethylaminoethyl hexanoate 0.05-90.0 parts. The pesticide combination for preventing the corn top rot induces basic resistance of corns by synergistically effects of the plant growth adjusting agents and the active polysaccharides, enhances ability of the corns for resisting environmental stress, promotes diseased plants to rapidly recover normal growth, and prevents and controls the corn top rot to happen and develop.

Description

technical field [0001] The invention relates to the technical field of pesticides, in particular to a pesticide composition for preventing and treating corn top rot. Background technique [0002] Corn top rot is a new disease of corn, which can be divided into bacterial infection, fungal infection and mixed infection of fungi and bacteria in terms of symptoms. Symptoms of maize top rot are complex and diverse, and can infect and develop diseases throughout the entire growth period of maize. Seedling stage manifests as: slow plant growth, chlorotic leaf edges, yellow streaks appear, deformed, shrunken or twisted leaves, withered or dead severely diseased plants; middle and late growth manifests: leaf base rots, only main veins remain, middle and upper parts Complete but deformed, the top of the new leaves is rotten, resulting in short leaves, dead or incomplete leaf tips, blade-like nicks and yellow stripes often appear on the edge of the leaves; adult plants show different ...

AI Technical Summary

Problems solved by technology

[0003] At present, there are few studies on corn top rot at home and abroad, lack of systematic research and effective control measures, the pathogenesis is unknown, and the control is difficult. The bactericides, fungicides, or both Mixed and treated symptomatically, there was no obvious control effect, and there was no report on the effective control of corn top rot.

[0004] Through years of pathogenesis research, the inventor classified corn top rot from a pathogenic disease to an environmental stress disease for the first time in China. By inducing basic resistance, the disease resistance ability of the diseased plant and the ability to resist environmental stress were improved, and the pathogenic bacteria were slowed down and eliminated. Allergic reactions caused by pathogenic bacteria and corn can cause compatible symbiosis, and prevent and control the occurrence and development of corn top rot. This is a new discovery in the research on the pathogenesis and chemical control of corn top rot.

Images