Spodoptera litura, also known as lotus insect moth, tawny burglar, is Lepidoptera, Noctuidae. Spodoptera litura occurs throughout the country and is an overeating pest. The major hazard zones are in the provinces of Henan, Hebei, and Shandong in the Yangtze River basin in Jiangxi, Hubei, Hunan, Zhejiang, Jiangsu, Anhui and Yellow River basins. Spodoptera litura is a kind of polyphagous pest, and there are more than 290 kinds of plants known to be harmful. There are more than 90 kinds of plants. Injury: Newborn egg larvae feed on the back of the leaf, leaving only the epidermis and veins. The damaged leaves are like screens. Dispersion hazards after 3rd instar, the leaves will be eaten as nicks, the leaves will be eaten for a long time, and even the young stalks will be eaten. When the larvae eat out of a field, the larvae can migrate to neighboring fields in groups. Morphological characteristics, control methods 1. Bacterial insecticides may be used for biological control, such as domestically produced Bt emulsions or liquids of No. 6 of the genus Bacillus, usually 500 to 800 times dilution. 2, chemical control can be used phoxim 50% EC 1,000 times dilution, deltamethrin 2.5% EC 3000 times, or 21% kill EC 4000 times.