JAYSHREE JHALA, A. K. VYAS, H. SWAMI AND A. MORDIA

The present investigation was carried out under laboratory condition in Department of Entomology, Rajasthan College of Agriculture, MPUAT, Udaipur during August, 2017 with the objective to assess the effect of five different hosts viz, maize, rice, pearl millet, wheat and sorghum on the biology of C. cephalonica. The results revealed that the minimum larval period (32.40 days) was recorded on sorghum and maximum was on wheat (43.15 days). The maximum larval weight of 52.55 and 42.00 mg were recorded on sorghum and wheat, respectively. The minimum pupal period was recorded on sorghum (9.45 days) and maximum on wheat (1020 days). The minimum hatching period (4.00 days) was observed on sorghum and maximum on wheat (5.50 days). The maximum adult emergence was recorded on sorghum (80.00%) and minimum on wheat (68.75%). The Growth Rate Index was maximum on sorghum (1.73) and minimum on wheat (1.18). The highest mean fecundity (301.75 eggs/female) was recorded on sorghum and minimum was on wheat (230.75 eggs/female). The maximum adult longevity period (10.50 days) was recorded on sorghum and minimum on wheat (8.25 days). The minimum developmental period was recorded on sorghum (4620 days) and maximum was on wheat (57.80 days).