湘西地区葛根害虫紫茎甲危害规律剖析

Harm of Sagra Frmorata to Kudzuvine Root in Xiangxi

紫茎甲虫是危害葛根的主要害虫,对湘西地区栽培的葛根中的紫茎甲的生活习性和危害情况进行了为期3a的观察.结果表明,紫茎甲的整个生命过程都对葛根的生长产生危害,特别是幼虫对植物的组织破坏最大,危害的时间最长且在湘西地区为1年1代.紫茎甲的危害严重影响葛根的生长和发育及其生产.

Sagra femorata is the main pest for Kudzuvine Root.The authors observed its life habit and harm to Kudzuvine Root for three years.The results show Sagra frmorata does harm to Kudzuvine root in the whole of its life course,especially in its larva period,when the harm is the most serious and lasts the longest.In conclusion Sagra femorata does great harm to the growth and production of Kudzuvine root.