The scientific name Lixus amurensis Faust is from the order of Coleoptera. Distributed in the Northeast, North China, Central China, East China.
Host rape, soybeans, strawberries, beans, kidney beans, etc.
Injury features adult insects damage the leaves into holes or nicks, and some snap buds or inflorescences.
The morphological characteristics of adult long narrow, body length of about 10mm, 2.5-3mm wide, black, covered with gray hair; the initial emergence of individuals covered with bright brick red powder, antennae dark brown, slender. Slightly curved, up to 3/4 of the chest, thicker than the forefoot leg, with gray hairs, large engraved dots, and shallow grooves at the ends. The width of the anterior chest is longer than that of the longest, the base is the widest, and it gradually narrows toward the front. It has a conical shape, and the surface is scattered with extremely small engraved dots and has no luster. There is a long nest before the small scutellum, small scutellum is not obvious. Both sides of the eel wing protuberances are nearly parallel. Each eel wing has a longitudinal row of engraved points. The engraved points of the base are slightly deeper. The engraved points on both sides and the back end are slightly shallower, and the ends of the eel wing are cracked, with a long and sharp acute process. . There is no obvious black spot on the abdomen. The length of the foot is long and the middle yellow hair is densely covered, forming a ridge, and the female's abdomen is slightly raised in the first two sections.
Life habits were widespread in Jilin adult insects in late June. Adults were still visible in mid-August. Adults were observed in Jiangsu in June and October. Adults were extremely resistant to drought and hunger.
Control methods (1) Chemical dressing. (2) Spraying of contact-killing agents during adult's damage.
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