1、 What is bean worm

Bean worm refers to the larvae of bean worm moth, also known as bean cicada and bean pill. It specifically belongs to Lepidoptera tianmothidae, and its growth cycle is an annual generation. Its larvae are generally yellow green, with a body length of about 90mm. There is a yellow green protrusion on the head, with 3 pairs of chest feet, 1 pair of tail feet and 4 pairs of abdominal feet. The tail is yellow green. In addition, it mainly occurs from late July to early and mid August, mostly related to precipitation

2、 Which garden plants will be harmed

Soybean insects are mainly parasitic on mung beans, soybeans, Robinia pseudoacacia, Robinia pseudoacacia and other plants, which will harm these plants. The distribution area is generally in the Huang Huai River Basin, the Yangtze River Basin and South China. Most adults come out at night and stay in the middle of the crop stem during the day, and then start to move in the evening. Some also like to suck nectar and have a tendency to black light. In addition, silting occurs more frequently in dense plants, fertile soil and low-lying land

3、 How to prevent

Agricultural prevention and control methods can be used for prevention and control. The soil should be deeply cultivated to eliminate overwintering insect eggs. We should also change the way of farming and interplant rape to control soybean pests. It can also be captured manually or sprayed with drugs. Choose dichlorvos, malathion or killing moths and clams. The best time to spray medicine is in the afternoon, and the effect will be better