Hawthorn physalospora piricola preventing and controlling method

Abstract

The invention provides a hawthorn physalospora piricola preventing and controlling method and belongs to the field of prevention and control of diseases and pests of fruit trees. For different hawthorn growth and development stages, different protective solutions are prepared in several time periods including the period before complete blossom fall, the middle ten days and the last ten days of June, the middle ten days and the last ten days of July and the middle ten days and the last ten days of August to conduct multiple times of protective sterilization spraying on hawthorn trees and achieve the purpose of effectively preventing and controlling the physalospora piricola, meanwhile physalospora piricola nose is prevented from producing pesticide resistance, and a preventing and controlling effect lasts for a long period of time.

Description

technical field [0001] The invention belongs to the field of prevention and control of fruit tree diseases and insect pests, in particular to a method for preventing and treating hawthorn ring disease. Background technique [0002] Fruit tree ring disease is also known as ring rot disease, rough skin disease, ring ring brown rot and verrucous rough skin disease, etc. It is common in various fruit trees such as apples, pears, peaches, plums, apricots, chestnuts, jujubes, and crabapple. Generally, the disease occurs during the near ripening and storage period of the fruit. During the onset, oblate or oval reddish-brown lesions are formed on the branches of fruit trees with the lenticels as the center. Lesions are hard in texture, protruding in the center, like a wart, and cracked at the edge, often forming a ring groove with the healthy tissue. In the second year of onset, many small black dots appear in the center of the lesion, and the cracks between the lesion and the hea...

AI Technical Summary

Problems solved by technology

However, with the enhancement of drug resistance of ringworm bacteria, coupled with external factors such as the environment, the control effect is not ideal, and it is getting worse and worse.