TY - BOOK AU - Muthulakshmi P. AU - Dr. S. Jeyarajan Nelson TI - "Efficacy of plant extracts against Nilaparvata lugens (Stal), Cnaphalocrocis medinalis (Guenee), Spodoptera litura Fab. and Henosepilachna vigintioctopunctata F." KW - "Nilaparvata lugens, Cnaphalocrocis medinalis" ER -