Cowpea is attacked by many destructive pests that cause a great damage to the crop. Also, several insects belonging to family Bruchidae of order Coleoptera attacks stored cowpeas seeds. The most important insect pest attacking cowpea seeds is Callosobruchus maculatus (F.), which causes weight loss, decrease germination potential and a reduction in commercial value.The classification of plant resistance phenomena was divided into three categories non-preference (antixenosis), antibiosis and tolerance, though it is important to realize that resistance, whether genetic or environmentally...