| variation in responses to susceptible and resistant cowpeas among west african populations of callosobruchus maculatus (coleoptera: bruchidae). | the cowpea seed beetle, sometimes also known as the cowpea weevil, callosobruchus maculatus (f.), is a major pest of stored cowpeas (vigna unguiculata walpers) in west africa. control methods have included development of 'resistant' varieties as an environmentally benign alternative to insecticides, but there is concern over their effectiveness because of population variation among the insects and the possibility of adaptation overcoming seed resistance. populations of c. maculatus from nigeria, ... | 2003 | 14994820 |