Mechanisms of resistance in groundnut genotypes against leaf bud borer, Anarsia ephippias (Meyrick)

A study was conducted to evaluate plant resistance in groundnut genotypes to groundnut leaf bud borer, Anarsia ephippias (Meyrick) (Gelechiidae; Lepidoptera), an emerging insect pest of groundnut. Out of forty one genotypes that were screened, the genotypes ASK-2013-1, K-1563 and TCGS-894 were found to be resistant; TCGS-1156 and K-1628 were found to be moderately resistant and Narayani and K-6 were found to be susceptible for their reaction to leaf bud borer. Biology, larval preference and ovipositional preference of leaf bud borer on these groundnut genotypes were studied and were correlated to plant biophysical and biochemical characters.