Division of Entomology, Indian Agricultural Research Institute, New Delhi - 110 012, India.
*Permanent address: Department of Biology, Federal University of Technology, P.M.B 704, Akure, Nigeria. E-mail: oashamo@yahoo.com
Studies on varietal resistance in sorghum to the Angoumois grain moth, Sitotroga cerealella (Olivier) indicated that IHT 405 was the least susceptible (most resistant) variety (developmental period of 33.3days, adult emergence of 2.3, Susceptibility Index (SI) of 2.7 and weight loss of 1.2%) while AVHT 303 was most susceptible (adult emergence of 15.7, SI of 9.3 and weight loss of 6.1%). Small-sized seeds tend to be less susceptible than larger-sized seeds. Longest, larva to adult developmental period of 34.0 days was observed on IHT 405. The female adult lived longer (9.0 days) than males (8.0 days).
