Screening of rice cultivars against rice leaf folder Cnaphalocrocis medinalis (Guenee) in Jammu.

摘要

Field screening of rice cultivars under natural infestation of leaf folder, Cnaphalocrocis medinalis, was conducted during kharif 2002 in Jammu, India. None of the 50 cultivars was immune or resistant to leaf folder. However, 18 cultivars were moderately resistant to the disease. The remaining cultivars were moderately susceptible (25 cultivars), susceptible (6 cultivars) or highly susceptible (one cultivar)..