Pear pest and disease prevention and control method

Abstract

The invention discloses a pear pest and disease prevention and control method. The pear pest and disease prevention and control method is characterized by comprising the steps that cultivation management is strengthened, an applied organic fertilizer is increased to improve the disease-resistant ability of tree bodies, intertillage and weed removal are performed in time, accumulated water in an orchard is discharged, the temperature is reduced, the ventilating and light-transmitting capacities are enhanced, a phosphorus potassium fertilizer accounting for no less than 60% of the total fertilizer percentage is applied, and tree trunk whitening is suitable for implementation after leaf falling but before freezing up, wherein the whitened positions are mainly tree trunks; overwintering microbial sources are wiped out, the orchard is thoroughly swept before disease occurrence to remove fallen leaves and fruits in the orchard, the fallen leaves and fruits are destroyed in a centralized mode, and 4 Beaume degrees of lime sulfur is sprayed to eradicate the overwintering microbial sources; after blossom fall of pear trees, one-time foliar spraying is performed every 5-10 days, spraying continues for 3-5 times, and 600-800 times of liquid of 50% Tuzet wettable powder is sprayed for one time before fruit bagging, wherein a foliar spraying agent is prepared by mixing 15% triadimefon and 50% carbendazim according to the ratio of 3:1 and then using 1000-1500 times of water to perform dilution.

Description

technical field [0001] The invention relates to a method for preventing and controlling fruit diseases and insect pests, in particular to a method for controlling diseases and insect pests for pear trees. Background technique [0002] Pear tree is Rosaceae Pyrus, perennial deciduous fruit tree, arbor. At present, there are a lot of pear pests, and pears are controlled by spraying pesticides. When pears are ripe, some pears will have scars and spots on the surface, which will affect the sales of pears. At the same time, there will be a lot of pesticide residues on the surface of pears. Pears will cause harm to the human body, and the residues of pesticides cannot form green food, which affects economic benefits. Contents of the invention [0003] In order to solve the problems in the prior art, the invention provides a method for controlling pear tree diseases and insect pests. [0004] In order to solve the problems referred to above, the technical scheme that the presen...

AI Technical Summary

Problems solved by technology

At present, there are a lot of pear pests, and pears are controlled by spraying pesticides. When pears are ripe, some pears will have scars and spots on the surface, which will affect the sales of pears. At the same time, there will be a lot of pesticide residues on the surface of pears. Pears will cause harm to the human body, and the residues of pesticides cannot form green food, which will affect economic benefits