Bioefficacy of seed extracts of Strychnos nux-vomica and Semicarpus anacardium against Helicoverpa armigera (Hubnar) (Lepidoptera: Noctuidae)
نویسندگان
چکیده
Hexane, chloroform, ethyl acetate and methanol extracts of Strychnos nux-vomica Linn. (Family: Loganiaceae) and Semecarpus anacardium Linn. (Family: Anacardiaceae) were incorporated in semi-synthetic diet at 0.5, 1.0, 1.5 and 2% concentrations. Screened for antifeedant, larvicidal, pupicidal and adult malformation activities against Helicoverpa armigera (Lepidoptera: Noctuidae). The chloroform extract of S. anacardium seeds presented the highest antifeedant activity (74.27%) at 2% concentration. Hexane extract of S. nux-vomica seeds recorded 70.57% antifeedant activity. These two seed extracts did not show any larval mortality against H. armigera. But the treatments caused pupal mortality and abnormal development in the adult moths. Methanol extract of S. anacardium seeds recorded 28.57% pupicidal activity at 2% concentration and hexane extract of S. nux-vomica produced 31.43% of deformed adults. © 2014 Universal Research Publications. All rights reserved
منابع مشابه
Strychnos nux-vomica seeds: Pharmacognostical standardization, extraction, and antidiabetic activity
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