1Department of Entomology, College of Agriculture, Acharya N.G. Ranga Agricultural University, Rajendranagar, Hyderabad - 500 030, Andhra Pradesh, India
2Directorate of Sorghum Research, Rajendranagar, Hyderabad – 500030.
Growth and development of spotted stem borer, Chilo partellus (Swinhoe) was studied under laboratory conditions by using artifcial diet impregnated with dry leaf powder of ten sweet sorghum genotypes. Antibiosis was observed in terms of low larval survival, reduced larval and pupal mass, retardation of larval growth and development and reduced longevity and fecundity in three sweet sorghum genotypes i.e., IS-17825, IS-3556 and EC-538169. The moths emerging from these genotypes were deformed, less active and did not attain the normal size.
