H.P. MEGHWAL, N.K. BAJPAI, O.P. AMETA, AND H.K. JAIN

Of the seven maize varieties viz., Makka-3, Pratap Makka-5, Mahi Kanchan, Mahi Dhawal, Navjot, PEHM-2 and
PEHM-1 were screened for their susceptibility to Sitophilus oryzae (Linn.), none was resistant to S. oryzae infestation. The variety Pratap Early Makka-3 and Pratap Makka-5 were relatively less susceptible (55.61 to 60.00% oviposition; 225 to 270 adult emergence; 39.61 to 41.0 days to complete life cycle; 34.88 to 40.02% grain damage and 13.60 to 15.34 % weight loss). On the basis of these parameters, Mahi Kanchan, Mahi Dhawal and Navjot were moderately susceptible, while PHEM-2 and PHEM-1 were most susceptible.