In addition, don't open the doors and windows easily at ordinary times, and put gauze on the windows to try to prevent Chrysopa from flying into the house.
Extended data:
Chrysopa is a completely abnormal insect, which has four different forms in its life: egg, larva, pupa and adult. Chrysopa can't feed in egg stage and pupa stage, but mainly prey in larval stage and adult stage, especially in larval stage, which is the main period to eliminate pests. Chrysopa larvae are ugly and prey fiercely. People call Chrysopa larvae also called aphid lions.
Lions are very active. Although it has no wings and can't fly at will, it can keep crawling on plants, looking for pests to prey everywhere. Aphid lions prey on pests or eggs, and each aphid lion can eat hundreds of aphids a day. The main weapons of the aphid lion are the upper and lower jaws born in front of the head. Whenever they find a target, they will open their jaws and hold the target tightly.
There are small grooves on the upper jaw and lower jaw that can make digestive juice flow to pests, and the liquid that can dissolve pests' bodies flows to pests along the small grooves on the lower jaw, so that the tissues of pests' bodies will be dissolved, and the dissolved liquid will be immediately sucked into the stomach by aphids and lions. In this way, a pest finally leaves only an empty shell.
The feeding habits of Chrysopa adults have changed. For example, Chrysopa sinica and Chrysopa asiatica have changed from carnivorous to herbivorous. Like bees and butterflies, they fly among flowers, sucking plant pollen and honey dew.
At this time, they lost the ability to kill pests, while other species of Chrysopa stick to the habit of eating meat and still feed on pests, such as Chrysopa grandis and Chrysopa japonica, which can still eat more than 100 aphids on average every day.
Baidu Encyclopedia: Chrysopa