MONIKA AWASTHI AND RUCHIRA TIWARI*

The effect of neem leaf and jatropha seed powder alone and their extracts prepared in cow urine (with concentration 5% and 10%) was studied on the growth and development of rice moth, Corcyra cephalonica (St.) on stored wheat. All the treatments were effective against the tested larval stages of C. cephalonica. The neonate larvae were more sensitive. The survival rate (%) of the larvae decreased with increasing concentration. Neem alone and neem with cow urine treated cereal grains (5% and 10%) were most effective as 100 per cent mortality of larvae occurred at early stages without feeding on the treated grains. The survival of larvae, pupae and their weight were significantly less with extended larval as well as pupal developmental period and growth index.