The beneficial insects of locusts are mainly damaged by food stems of larvae locusts, causing the growth of the trees to become weak, and when they are severe, they form dead branches or the whole plant is dead. Therefore, joint summer pruning, eliminating its overwhelming body, and mastering the occurrence of insect damage in the coming year is a useful way to eliminate the loss. (1) There are three kinds of Tianni’s disease: Sang Tianniu, Xingtianni, and Bianhongshangou. In 2-3 years, one generation will damage xylem and medullary heart, and the epidermis of the affected part will be normal. There will be a row of fecal holes at regular intervals, the insects will be straight, and red-brown worms will crowd out in the air. Dip a small amount of 80% dichlorvos emulsifiable concentrate or 0.2 gram of aluminum phosphide with a cotton ball and stuff it into the penultimate or second row of fecal holes. Seal all the fecal holes with wet mud. Aluminum phosphide is very toxic and must be watched for quietness when applied. (2) Gynoceridins parasitize in apples and pear trees and produce one generation in 1-2 years. It damages the superficial cortex, phloem layer, and constituent layers. Cortical areas of the affected area are cracked. White mucous penetrates outside the insects. Commonly known as "blush oil." . The spiral path of the insect is oval and the insect path is full of brown insects. Add 1 kg of oil and 0.1 kg of 80% dichlorvos EC, stir and apply to insects to kill their larvae. (C) Pear and stem bees produce one generation each year. Female adults lay their eggs in the phloem of young shoots in mid- and mid-April, and they use their jagged ovipositors to saw off the upper part of the spawning ovum. Injury to food, down the transition of biennial branches, and false wintering. In winter, cut off the broken piles and pay attention to the three-year-old branches that must be cut and destroyed. (D) grape through the wart moth is an important beneficial grape worm, 1 generation generation, larvae borer damage young shoots, affecting the development of vines and fruit development, pith eating, the vines often swelling into a tumor, and in its Winter in the winter. When cutting in winter, cut off the swelling of the branches and concentrate on disposal. For coarse vines, 80% of dichlorvos can be pumped into the larvae with cotton to dilute the larvae. Disclaimer: Some articles in this website have been transferred from the Internet. If you are involved in third-party legal rights, please inform this website. phone