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Three different concentrations (20, 10 and 5%) of ethanol, ethyl acetate, diethyl ether and chloroform extracts of Capparis aegyptia plant leaves were tested against 2 nd instar larvae of Agrotis ipsilon to study the toxicity and their effects on some biological parameters under laboratory conditions. Maximum mortality percentage was 40% at 5% of ethyl acetate extract, while treatment with ethanol extract recorded the lowest mortality percentages especially at 5%. Calculated LC50 was ranged between 5.752 and 8.027 at treatments with ethanol extract and chloroform extract, respectively. Low concentrations were almost more toxic than high. Malformation percentages of emerged adults were observed with ethanol and diethyl ether extracts. Fecundity reduction percentages at treatments in comparison with control reached the maximum (100%) at treatment with ethyl acetate extract while the minimum was about 50% at chloroform extract treatment.

Toxicity and Biological effect of Capparis leaves extracts to the black cutworm, Agrotis ipsilon (Hufn.)