Abstract :
Powders from Vernonia amygdalina were evaluated for their efficacy as contact insecticides on cowpea bruchid, Callosobruchus maculatus in the laboratory at temperature of 30±2oC and 75±5% relative humidity. The powders were applied at rate 2g/20g of cowpea seeds. The result showed that the plant powders tested as contact insecticides significantly (Proot. Bitter leaf can be used as entomotoxicant against C. maculatus and its incorporation into traditional storage pest management is strongly recommended in developing countries.
Keyword :
Beetle Perforation Index, Callosobruchus maculates, Entomotoxicant, Vernonia amygdalina.