Pyrus communis is the most important pest on pear trees, which can harm pear leaves, cause spotting, weaken the tree vigor, and reduce fruit quality and yield, occurring four to five generations per year. There are two kinds of adult pupa, winter and summer. Adults of winter type are wintering in the cracks of dried pear trees, and a few in weeds, deciduous trees and soils, which seriously affect the quality and yield of fruits. Therefore, comprehensive prevention and control should be carried out for the wintering places. Clearing the debris, fallen leaves, and weeds in and around the park clears the ground and burns them, which can reduce over-winter pear hibiscus. Scrape the plastic film on the tree tray and use a knife to scrape the rough skin on the tree trunk and rot, dry rot, and ring veins, and then gather them deeply. Irrigation When the temperature falls below the freezing point, the implementation of irrigation in the garden can drown the winter pears in the soil. The critical period for the prevention and treatment of drug control agents is the overwintering adult emergence period to the spawning period, which is the middle and the middle of March. Commonly used pharmaceuticals include 20% triclosan emulsion 3000 times solution, 10% large meritorious WP 2000 times solution, 0.9% effordable 3000 times solution, etc., which can treat pears, pears, pears, etc. heating Haloxylon Ammodendron Medical Equipment Co., Ltd. , https://www.haloxylonhospital.com