Cowpea beetle is the most important causing damage factors to stored products including cereal. It is one of the factors that decline the stored products. One factor that has a direct impact on pest life stage is temperature. It is research the effects of 35°c to 60°c on the various life stages of the pest temperatures from egg to adult stage was studied. Each of the temperatures within 5 to 30 minutes was studied. The tests done in a completely randomized design and Duncan's test were used for statistical comparison as significant. Study showed a temperature of 55°c to 60°c control 100% in all stages of biological pest and all times and loss biological different stage pest at 50°c is significant. Pupation stage is the most resistant of the life stages of pests resistant to temperature and also with increasing temperature and time, the mortality rate of pest increased and these two variables are correlated with each other.
