摘要：Petroleum ether (Pet. ether), chloroform (CHCl 3 ) and methanol (CH 3 OH) extracts of Cleome viscosa have thoroughly screened against Tribolium castaneum (Hbst.) for repellency and dose mortality, against Callosobruchus chinensis for dose mortality activities, and against Artemia salina nauplii for lethality. In case of repellency of T. castaneum, Pet. ether extract found significantly active at 1% level of significance (P CHCl 3 > Pet. ether extracts.
其他摘要：Petroleum ether (Pet. ether), chloroform (CHCl 3 ) and methanol (CH 3 OH) extracts of Cleome viscosa have thoroughly screened against Tribolium castaneum (Hbst.) for repellency and dose mortality, against Callosobruchus chinensis for dose mortality activities, and against Artemia salina nauplii for lethality. In case of repellency of T. castaneum, Pet. ether extract found significantly active at 1% level of significance (P < 0.01), CHCl 3 extract offered activity at 5% level of significance (P < 0.05) and CH 3 OH extract did not show any activity at all. In case of mortality against T. castaneum the LD 50 values of Pet. ether, CHCl 3 , and CH 3 OH extracts were 2.380, 2.188, 1.867, 1.658 and 1.429 mg/cm 2 ; 4.950, 2.906, 2.664, 2.658 and 2.609 mg/cm 2 ; and 4.950 and 2.791, 2.609, 2.552 and 2.474 mg/cm 2 after 0.5, 6, 12, 18 and 24 h of exposure respectively. Against C. chinensis the LD 50 values of the same extracts were 0.781, 0.670, 0.642, 0.614, 0.560 and 0.494 mg/cm 2 ; 1.964, 1.050, 0.867, 0.725, 0.635 and 0.590 mg/cm 2 ; and 2.631, 1.851, 1.471, 1.703, 1.524 and 1.457 mg/cm 2 after 6, 12, 18, 24, 30 and 36 h of exposure respectively. In case of cytotoxicity test against A. salina, the extracts offered LC 50 values in a descending order CH 3 OH > CHCl 3 > Pet. ether extracts.
