几种中草药提取物对菜青虫的干扰控制作用

The Interference Control Effects of Several Chinese Herbal Medicine Extracts on Artogeia rapae

研究了9种中草药乙醇提取物对菜青虫种群的干扰控制作用。结果表明,9种中草药提取物对菜青虫成虫产卵都有较好的忌避作用,但对卵和低龄幼虫的毒杀作用不明显。其中百部、贯众、槟榔对菜青虫种群的干扰控制作用较好,干扰作用控制指数分别达到0.3180、0.3837、0.4134,即控制效果分别达到68.2%、61.63%和58.66%。

Based on the co-evolution between chemical defence of plant and behavior of phytophgous insects, the interference control effects of alcohol extracts of nine kinds of Chinese herbal medicines on Artogeia rapae were studied in this paper. The results showed that the extracts of the nine Chinese herbal medicines had significant effects of repelling adults and deterring egg laying, but had no evident effects of causing death by toxicity on egg and small larva of Artogeia rapae. Among the nine Chinese herbal medicines Stemona japonica, Cyrtomiumfortunei and A reca catheca had the most significant control effects on the population of Artogeia rapae and their interference indices of population control（IIPC） were 0.3180, 0.3837 and 0.4134 respectively. It meant that their control effects reached 68.2%, 61.63% and 58.66% respectively.