How to control scale insects on Lagerstroemia indica?

Gardening control combined with plastic pruning in winter can remove branches with serious pests and overwintering insects.

Pay attention to the usual maintenance observation of manual prevention and control, and brush it off once it is found.

Chemical control in serious areas, in addition to strengthening pruning and maintenance in winter, chemical agents should also be used for control.

Prevention and control in early spring Before germination in early spring, 3-5 Baume lime-sulfur mixture can be sprayed to kill overwintering nymphs.

The occurrence period of insect pests is controlled in the seedling growing season. For serious seedlings, we should pay attention to observation and use nymphs during the full incubation period. The general chemicals that can be selected are 40% EC 1500 times or 48% EC 1200 times.

The specific medicine "crazy killer" has special effect on scale insects on flowers and trees. If it is used for control, 1000 ~ 1500 times solution and 800 ~ 1000 times solution can be used to control scale insects. However, it should be noted that this medicine does not have the function of internal absorption and conduction, so it must be sprayed carefully and evenly so that the whole tree can receive it evenly.