A: From April to June every year is the season for beetles to lay eggs. Therefore, the decay and drilling of pits inside the tree hole will hinder the normal growth of fruit trees and weaken the tree vigor. When the damage is serious, it can cause the whole tree to wither and die quickly. Corroded trees are also susceptible to the intrusion of other pests and germs, and are more likely to break off when strong winds strike. For the prevention and treatment of beetles, the effective method generally used is: after dilution with trichlorfon water (dilution concentration is 30 times), use the syringe to inject the potion into the eroded tree hole, and then plug the hole with the cotton wool soaked in the potion . You can also use camphor pills to crush into a tree hole and plug the hole with a cotton wool soaked in medicine. Disclaimer: Some articles of this website are transferred from the Internet. If the legal rights of third parties are involved, please inform this website for processing. phone Garden Hose Cart,Garden Hose Reel Cart,Portable Garden Hose Reel Carts,Heavy Duty Garden Hose Reel Cart NINGBO QIKAI ENVIRONMENTAL TECHNOLOGY CO.,LTD , https://www.water-hose-reel.com