A study on effect of some plant extracts gainst the feeding activity of S. obliqua
Experiment was conducted to study the effect of plant extracts (5 and 10%) of seven plant species viz; Vasaka, (Adhatoda vasaka) ; Jatropha (Jatropha curcas) ; Mandukparni (Centella asiatica); Kundru (Coccinia grandis) ; Karipatta (Murraya Koenigii) ; Marigold (Tagetus erectus) ; Brahmi, (Bacopa monnieri) against the feeding behavior of 8 days old larvae of S. obliqua. At 10% conc.J. curcas (seed) di ethyl ether extract was found to be most effective with antifeedant activity, 94.39 % while least effective was B. monnieri (leaves) acetone extract with antifeedant activity 38.74%. This study can be useful for the IPM program of tested insect.
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