Insecticidal activities of extracts from Buddleja albiflora Hemsl.against four kinds of pests
巴东醉鱼草提取物对几种害虫的生物活性研究

The insecticidal activities of the extraction fractions,which were obtained by soaking the powder of Buddleja albiflora H.with 95% ethanol and then treated with petroleum ether,ethyl acetate and butanol,against three kinds of pests of Lepidoptera and Tetranychus cinnabarinus B.were tested.The results showed that the petroleum and ethyl acetate extracts possessed considerable activities to all testing pests.The antifeedant rates of ethyl acetate extracts against 3rd instar larvae of Plutella xylostella L.dur...