Fruit tree weak parasitic disease green prevention and control method

Abstract

The invention relates to a fruit tree weak parasitic disease green prevention and control method which includes the steps: improving soil environments by bio-organic fertilizers and mineral ecologicalfertilizers, and spraying induced immune activators to activate disease-resistant mechanisms of plants; spraying plant source sterilizing agents in an auxiliary manner before weak parasitic diseaseshappen. According to the method, improvement of soil, induced immune activation and the plant source sterilizing agents are combined, immunity and disease resistance of walnuts are improved, canker ofthe walnuts is effectively controlled, production capability of fruit trees is improved, a fruit bearing period is prolonged, and the method is of great significance for guarantee of production benefits of walnut framers and facilitating of development of rural economy walnut industry.

Description

technical field [0001] The invention relates to the technical field of green plant protection, in particular to a green prevention and control method for weak parasitic diseases of fruit trees. Background technique [0002] There are many saprophytic parasites in nature, such as: Botrytis, Valsa, Botryos-phaeria, Rhizoctonia, Fusarium Fusarium, Verlicllium, Armillariella, and Penicillium that cause fruit rot are a class of non-obligate parasites with very weak parasitism. They usually damage the non-green parts of plants, such as roots, branches, flowers and fruits, etc.; or only damage the green parts of plants when the plants are in a severely weakened state, such as Alternaria. Without specific environmental conditions, they cannot parasitize living organisms. Such weak parasites are also called facultative parasites. Diseases caused by weak parasitic pathogens are called weak parasitic diseases. Weak parasitic pathogens usually have a wide host range, no obvious physi...

AI Technical Summary

Problems solved by technology

The measures usually adopted in the diseased area are: soil disinfection with chemical fungicides, spraying above ground, dripping at the base or smearing of lesions, but no matter what kind of chemical agents can not effectively control canker disease, it often shows that the control effect is not good, and the treatment is not good. Thorough problems; or by strengthening forest management, changing chemical fertilizers to ordinary farmyard manure, plant ash, biogas slurry; or wrapping plastic films on susceptible tree trunks or side branches to isolate pathogenic bacteria, etc.

But no matter which one or more methods can not effectively control the occurrence of the disease, it can only delay the time when the tree decays and eventually dies due to the disease.

[0006] Practice has proved that once walnuts are infected with canker, the process of tree weakening will be accelerated; tree weakening will also increase the incidence and degree of canker disease, and eventually lead to complete decline of tree vigor, loss of production capacity or death

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