These bugs belong to the mealybug group of mealybugs, mealybugs, which occur once a year, overwintering in the soil at the base of the trunk with eggs and first-hatched larvae (between eggs and larvae). Worms begin to appear in late February of the following year. Worms are concentrated in large numbers on one- and two-year-old branches, harming shoots and buds. The period of the first-instarter worm is long, up to 2-3 months. Worms have the habit of going up the tree after sunrise to do harm, and going down the tree in the afternoon to dive into the soil cracks and other places.

Mainly grow in citrus, pepper and other trees, the body grows a straw, the worm will be inserted into the trunk, sucking tree sap, general pesticides are difficult to eliminate."　　

There are 3 steps to kill the subclass of bugs: one, before the tree germinates, spray the trunk with fungicide; two, wait for the tree to germinate, with the effect of low-toxicity organophosphorus pesticides sprayed; three, with organophosphorus pesticides to the roots of the irrigation, to kill the eggs.