Abstract
The rice leaf folder, Cnaphalocrocis medinalis (Guenee) is a significant pest causing outbreaks. This study focuses on the impact of selected rice landraces on the survivability of C. medinalis, aiming to identify potential sources for IPM and future breeding programs. The research encompassed 35 landraces, categorized as resistant, moderately resistant and susceptible based on net house screenings along with standard resistant check (TKM6) and susceptible check (TN1). The study evaluated fecundity, larval emergence, survival rates, and adult emergence on these genotypes. Results showed that resistant and moderately resistant genotypes significantly reduced the pest’s fecundity and survival across various lifestages compared to susceptible ones. The findings indicated the possible existence of antibiosis factors in resistant genotypes.
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