How to eliminate the stem borer of Zihui tree?

Insects on the pole should be sprayed several times before the arrival of the insect peak. Regularly check whether there are bugs on the pole, and if there are, inject them with a syringe! The insects on the trunk of Lagerstroemia indica are mainly scale insects. Prevention and control of overwintering: combine pruning in winter to remove some seriously damaged insect branches, burn them centrally, or scrape them off with bamboo pieces. Use omethoate 1000 times solution for prevention and control in April and May. I hope I can help you.