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| Studies on Biological Activity of Extract of Cinnamomum camphora(L.)Presl and Artemisia annua L. against Cabbage Worn |
| Yao Anqing; Liang Dehua |
| Plant Science and Technology College of Yangtze University; Hubei 434025 |
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Abstract The contact poisoning and antifeedants effect of extract of Cinnamomum camphora and Artemisia annua against cabbage worn were studied. The result showed that the activity of extract of C. camphora-alcohol and A. annua-petroleum ether are better. Forty eight hours after experiment, the rates of antifeedants are 72.11 % and 57.86 %,and medium lethal concentrations of contact poisoning are 1.232 and 1.275 g·L -1 respectively.
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Received: 27 September 2003
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