Effect of different plant powders on the reproductive potentiality of rice moth, Corcyra cephalonica stainton

Ten plant powders viz., dharak kernel and leaf (Melia azadirach L.), neem kernel and leaf (Azadirachta indica Adr. Juss), Karanj kernel (Pongamia glabra), aak leaf (Calotropis procera Br.), datura leaf (Datura alba Nees.), citrus leaf (Citrus lemon L.), podina leaf (Mentha arvensis) and tulsi leaf (Ocimum sanctum L.) at @ 1.0,2.5 and 5.0 parts/100 parts of grain w/w) were tested to evaluated the effect on fecundity, egg viability and longevity of adults of Corcyra cephalonica Stainton. The per cent reduction in fecundity of test insect increased with the increase in dose level of each treatment. The mean per cent reduction in egg viability varied from 17.46 to 29.41 per cent and 13.78 to 35.17 per cent. The longevity of male and female adults gradually decreased with the increase in dose level of the treatments.