Efficacy of Azadirachta indica and Curcuma Amada as Grain Protectants against Rice Weevile (Sitophilus oryzae Lin.) in Wheat

Botanicals, Azadirachta indica A. juss. (neem) leaves and mango ginger (Curcuma amada) rhizome in powder form were applied in three doses at 1,3 and 5 gm/kg grain for testing their efficacy against Sitophilus oryzae under free choice and no choice test. Both the botanical were found effective. Mango ginger rhizome powder was fond most effective, which hinders the orientation of Sitophilus oryzae L and gave maximum mortality and reduced the emergence of the adult beetles.