What are the pests and diseases that harm Lagerstroemia indica?

Pest control of Lagerstroemia indica: 1. Soot disease: It often occurs on leaves and branches of plants and is mainly spread by aphids and scale insects. Therefore, priority should be given to pest control, and 40% omethoate EC 1500 times or 80% dichlorvos 1500 times can be sprayed.

2. Powdery mildew: it harms shoots and leaves. In severe cases, the shoots die and the plants can't bloom normally. It can be sprayed 3 ~ 5 times with 800 times solution of 70% thiophanate-methyl wettable powder.

3. Great decline moth: larvae damage branches and leaves from July to September, and 90% trichlorfon 1000 times solution can be sprayed.