摘要
针对商洛市药用植物害虫为害加重的情况,采用大田对角线五点平均取样法调查了商洛市商州区板蓝根、黄芪和桔梗等药用植物上大青叶蝉的发生及为害情况。结果显示:大青叶蝉在商州区种植的板蓝根、黄芪和桔梗中普遍发生,但发生量较小,板蓝根、黄芪和桔梗中单株平均有虫数最高分别为1.944头/株、0.211头/株和0.486头/株;最低分别为0.429头/株、0.015头/株和0.09头/株;三种药材中板蓝根叶片上发生数量最大;2009—2011年大青叶蝉在板蓝根上的为害程度变幅较小。虫害指数最高变幅为12.51%-13.34%。大青叶蝉在商州中药种植区药用植物上总体发生量小;种群年变化小,害情轻微。
As to the increasing damage by harmful insects to the medicinal plants in Shangluo City, an investigation is done on occurrence and damage of Cicadella viridis to Radix lsatidis, Astragalus Mongholicus and Platycodon Root, with the sample selected by five diagonal points in Shangzhou District, Shangluo City. The results show that Cicadella viridis had a widespread occurrence, but in small quantity in Radix Isatidis,the root of large-flowered skullcap and the root of balloon flower. The highest average number of insects in single plant is 1.944,0.211 and 0.486,with the lowest 0.429,0.015 and 0.090, respectively in Radix Isatidis, the root of large-flowered skullcap and Cicadella viridis, with Radix Isatidis taking the most insects. The damage of Cicadella viridis to Radix Isatidis in 2009-2010 is small, with the highest variance of 12.5%-13.34%. The general occurrence of green Cicadella viridis to Shangzhou medicinal plant is small, with little annual change, slight damage.
出处
《商洛学院学报》
2012年第6期47-50,共4页
Journal of Shangluo University
基金
陕西省教育厅专项科研计划项目(07JK238)
关键词
大青叶蝉
虫害指数
药用植物
杂食性
CicadeUa viridis
insects damage index
medicinal plant
omnivory
作者简介
唐养璇，男，陕西富平人，商洛学院生物医药工程系副教授
