EFFICACY OF INERT DUSTS AGAINST LESSER GRAIN BORER, RHIZOPERTHA DOMINICA (COLEOPTERA: BOSTRICHIDAE) IN STORED SORGHUM
Department of Entomology, Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology, Udaipur (Raj.) – 313 001, India
ABHIMANYU SINGH, K.C. SHARMA AND JHUMAR LAL
The efficacy of inert dusts against the lesser grain borer was evaluated under laboratory conditions at the Department of Entomology, RCA, Udaipur during 2013-14. Among different inert materials evaluated for their effectiveness against R. dominica upto 120 days, diatomaceous earth at 5 and 10g/kg grains and rice husk ash at 10g/kg grains were found superior with cent per cent adult mortality, no grain damage and weight loss and no progeny development. Flay ash at 5g/kg grains with adult mortality of 52.25 per cent, 11.25 adults emergence, 17.16 per cent grain damage and 5.01 per cent weight loss was least effective.