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andrograpliis paniculata

International Journal of Tropical Insect Science (1)

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Antifeedant, Oviposition-Deterrent and Growth-Inhibitory Activity of Andrographis paniculata against Spilarctia obliqua
A. K. Tripathi, Veena Prajapati, D. C. Jain, Sudhanshu Saxena
Journal:

Insect Science and Its Application / Volume 19 / Issue 2-3 / September 1999

Published online by Cambridge University Press:

19 September 2011, pp. 211-216

Print publication:

September 1999
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Crude fractions of aerial parts of Andrographis paniculata (Burm.f.) (Acanthaceae) were evaluated for antifeedant, growth-inhibitory and oviposition-deterrent activity against larval and adult stages of the Bihar hairy caterpillar, Spilarctia obliqua (Arctiidae). The methanol fraction had the highest growth-inhibitory activity. Further fractionation resulted in nine sub-fractions of which the most active, identified as the diterpene andrographolide, displayed significant growth-inhibitory and antifeedant properties with GI50 and FD50 values of 100.4 and 159.7 μg/g diet respectively. The ethyl acetate fraction possessed the highest oviposition-deterrent activity.