Abstract:
The experiments were conducted in laboratory condition (room temperature: Max 24-32 C and Min 18 - 27 C) at Khumaltar, Lalitpur (27?39?312m N latitude, 85?19?586m E longitude and 1322 masl) using botanicals: Corcuma domestica (Valot) rhizome flake and dust, Acorus calamus (Hamilt) stolen dust, Zingiber officinale (Roscoe) rhizome flake, Azadirachta indica (A. Juss) leaf dust, Citrus limon (Burmann) leaf dust, Juglans nigra (L.) leaf dust, Debregeasia saeneb (Forssk leaf dust, Cattle dung ash, Oryza sativa (L.) husk ash, Agave americana (L.) leaf ash, and in another experiment botanical with storage containers: Aluminium pot, earthen pot, polythene pot and jute bag each with botanicals (A. calamus dust, A. indica leaf dust and O. sativa husks ash) as treatments against Sitophilus zeamais (Mostch.) in CRD with 3 replications. The studies revealed that extent of grain damage varied depending upon types of botanicals and storage containers. A. calamus dust @ 25g/kg was effective against S. zeamais for 230 days, which was 16 times better than control in terms of bored grains. Regarding the storage containers with botanicals, aluminium container with A. calamus treatment was 28 times better than jute bag without botanical treatment (82.5%) in term of grain damage. Hence, the findings indicated potential use of A. calamus and aluminium storage container with A. calamus against weevils in maize storage. |
