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growth disruption

International Journal of Tropical Insect Science (1)

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Growth Disruption in Opisina arenosella Walker by Plumbagin, A Naturally Occurring Insect Growth Regulator
Mulampurath A. Suresh Kumar, Asoke Banerji
Journal:

Insect Science and Its Application / Volume 22 / Issue 4 / December 2002

Published online by Cambridge University Press:

19 September 2011, pp. 321-323

Print publication:

December 2002
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Plumbagin, a napthoquinone from the plant Plumbago zeylanica, delayed pupation when topically applied to newly moulted final instars of the leaf eating caterpillar Opisina arenosella Walker (Lepidoptera: Oecophoridae). Pupae from treated larvae emerged into non-viable adults and had abnormalities such as deformed wings and shrunken abdomens; they also died much before the control insects. The results suggest that plumbagin interferes with the process of development and ecdysis of the insect.