If the number is small, the insect body can be directly grabbed manually, or wiped with wet cotton or brush.
Spray 44% of damisone emulsion or 2.8% of warfarin emulsion once every 7-10 days in large quantity, 2-3 times in total.
Effective spraying should be carried out in the larval stage where the wax shell is not formed.
First of all, the cultivation environment should be ventilated and the humidity should be improved.
Generally, after hatching, spray 800 times of triclosan at a concentration of 20%, once every 5 days, 2-3 times can have a good effect.
If conditions permit, it can be assisted by spraying with nisolone 1500 times liquid, which will have better control effect.
