Screening of newly released wheat varieties from IGKV (Chhattisgarh) against Sitophilus oryzae L.

Abstract

Experiment was conducted at Department of entomology, BTC CARS, Bilaspur, (C.G) during September to December 2024 to know the suitability of wheat varieties during storage. Varietal screening studies reported the minimum adult orientation (1.00), adult emergence (3.00 adults) and minimum percent weight loss (0.1%) were recorded in Ratan variety. The highly preferred variety for rice weevil in terms of orientation, development and feeding is CG 1036 with maximum number of adult orientation (16.33), adult emergence (81.00 adults) and percent weight loss (5.00%) under free choice test whereas in no choice test the minimum adult emergence (16.5 adults) at 65 DAI, percent weight loss (1.50%) at 65 DAI and grain damage percentage (11.00%) at 120 DAI were recorded in Ratan, CG 1040 and Ratan, respectively. The highly preferred variety for rice weevil with maximum adult emergence (161.30 adults) at 65 DAI, percent weight loss (6.00%) at 65 DAI and grain damage percentage (51.30%) at 120 DAI was CG 1036 variety.