Evidence of induced resistance against the Red spider mite, Tetranychus urticae Koch. in Okra (Abehnoschus esculentus (L.) Moench) plants manured with oilcake based vermicomposts

摘要

Rearing of the red spider mite. Tetranycluts urticae Koch. on (oh age of Okra (Abelmoschus esculentus (L.) Wench) plants immured with different oilcake based vermicomposts resulted in reduced reproductivity of the pest. Highest reduction was due to neem cake based vermicompost which was significantly superior to karanj and castor cake based vermicomposts. Lowest reduction was in vermicompost from cow dung alone but significantly higher than that in unmaured control. Reduction in reproduct kitty of T. urticoe is indicative of induced resistance against it in host plants through manuring with oilcake vermicomposts.