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《Journal of Anhui Agricultural Sciences》 2009-09
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Studies on Bioactivity of Extracts from Pinellia ternata (Thunb.) Breit on Myzus persicae(Sulzer)

LI Jin-bu et al (Life Sciences College of Huaibei Coal Industry Teachers College,Anhui Biology Key Laboratory of Resource Plant,Huaibei,Anhui 235000)  
The active substances from dry powder of Pinellia ternata(Thunb.) Breit was extracted with petroleum ether,ethyl acetate and absolute ethanol,and the bioactivity of the extracts extracted by different solvent on Myzus persicae(Sulzer) was studied.The results showed that the extracts from P.ternata extracted by 3 solvents all had good antifeedant,toxic killing and systemic activity on M.persicae,among which the effect of the extracts extracted by absolute ethanol was the best.The antifeedant rate and poison correction mortality of 100.0 mg/ml extracts from P.ternata extracted by 3 solvents on M.persicae were 90.00% and 40.00% resp.aftre 48 h of the treatment,and the higher the extracts from P.ternata concn.and the longer the action time were,the better the bioactivity of it on M.persicae was.
【Fund】: 安徽省教育厅自然科学基金项目(kj2007b172、2006jql142);; 淮北市科技局项目(070141)
【CateGory Index】: S482.3
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