TOXIC AND CHEMOSTERRILIZING EFFECT OF SOME PLANT EXTRACTS ON THE COWPEA BEETLE Callosobruchus maculatus(F.)

Abstract

Toxic and chemosterrilizing effect of fennel (Foeniclum vulgare) and cress Seeds (Eruca sativa) extracts in (petroleum ether, acetone and ethanol) and Jojoba oil on the adults of Cowpea beetles Callosobruchus maculatus(F.) were evaluated. Results showed a high mortality values with high concentrations of cress Seeds extracts and Jojoba oil while Fennel extracts exhibited low mortality with all used concentrations. Insect mortality increase with the increasing of concentration and exposure period. At high concentrations all tested extracts had a pronounced effect on female reproduction. The reproduction of C.maculatus female was completely inhibited by using high concentration of Jojoba oil or cress seeds extraction in petroleum ether.