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麻天牛为鞘翅目天牛科的一种小型天牛。是冀中低洼地区菁麻上的重要害虫。幼虫蛀茎,成虫咬食茎叶致使菁麻株停止生长甚至枯死,严重地影响菁麻的产量和品质。麻天牛在河北省中部低洼地区的主要寄主为菁麻。据我们在雄县调查,菁麻被害率为70—92%,倒折率为10—15%,枯死率为0.8—1.5%。一、形态特征:成虫棕黑色,形似向日葵籽。头和体腹生灰色绒毛,颅顶黑色,额、
Cerambycidae is a small cerambycidae Cerambycidae. Jizhong is a low-lying area on the important insect pests. Grown larvae stems, adults bite edible stems and leaves caused Jing Jing Zhu growth or even dead, seriously affecting the yield and quality of Jingma. Ma Tiancun in Hebei Province in the central low-lying areas of the main host is Jing Ma. According to our survey in Xiong County, the rate of Jingma was 70-92%, the rate of reverse folding was 10-15%, and the rate of death was 0.8-1.5%. First, the morphological characteristics: Adult brown black, shaped like sunflower seeds. Head and body belly gray fluff, cranial black, forehead,