Method for pear tree pest and disease prevention

Abstract

The invention provides a method for pear tree pest and disease prevention and relates to the technical field of pear tree planting. The method is characterized by comprising the following steps: reinforcing cultivation management, increasing application of organic fertilizer to improve disease resistance of tree bodies, timely performing intertillage weeding, removing accumulated water in an orchard, reducing temperature, enhancing ventilation and transmitting capacity, wherein the applied phosphate and potash fertilizer accounts for no less than 50% of total fertilizer; eliminating overwintering bacterial sources; performing chemical spray on trees during growing seasons for prevention, spraying chemicals once about every 15 days from the last ten days of May to the beginning of June, wherein the chemicals can be selected from 50% carbendazim wettable powder by 850 times, 50% Kejunling wettable powder by 500 times, 70% mildothane wettable powder by 900-1000 times, 50% tuzet wettable powder by 600 times and 70% mancozeb wettable powder by 900-1300 times; and performing fruit bagging. The method can prevent most of pest and disease damage easily occurring to pear trees and can reduce the morbidity of the pear trees at a later period, facilitate later-period management and reduce loss caused by the pest and disease damage.

Description

Technical field: [0001] The invention relates to the technical field of pear tree planting, in particular to a method for preventing pear tree diseases and insect pests. Background technique: [0002] Pear tree is Rosaceae Pyrus, perennial deciduous fruit tree, arbor. There is a wide distribution in the world. There are many types of pear trees that suffer from diseases and insect pests. Most of them are diseases that occur in the epidermis of the vertical bar and the epidermis of the leaf and fruit, or the diseases that are infested by pests. It is relatively easy to prevent. In the prior art, what diseases are found in the actual planting , and then treat the discovered diseases, and some diseases and insect pests will cause great damage to pear trees after they are discovered, and there are many diseases and insect pests in pear trees, sometimes many kinds of diseases and insect pests occur at the same time, so it is not easy to treat and manage. Invention content: ...

AI Technical Summary

Problems solved by technology

There are many types of pear trees that suffer from diseases and insect pests. Most of them are diseases that occur in the epidermis of the vertical bar and the epidermis of the leaf and fruit, or the diseases that are infested by pests. It is relatively easy to prevent. In the prior art, what diseases are found in the actu