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NPR Vol.6(4) [July-August 2007] >


Title: Dechitinising property of Caesalpinia bonduc (Linn.) Roxb. against Culex quinquefasciatus
Authors: Periyanayagam, K
Saravanan, K Sundara
Ismail, M
Keywords: Caesalpinia bonduc
Caesalpiniaceae
Culex quinquefasciatus
Mosquito larvae
Larvicidal activity
Dechitinising property
Issue Date: Aug-2007
Publisher: CSIR
IPC CodeInt. cl.8A61K 36/48, A01P 7/04
Abstract: The fourth instar larvae of Culex quinquefasciatus were exposed to the petroleum ether and ethanolic extract of the leaves of Caesalpinia bonduc (Linn.) Roxb. emend. Dandy & Exell. The larvicidal activity was prominent and 100% mortality was observed in 1% concentration of both the extracts. Moreover, both the extracts caused thinning of chitin of the larvae exposed, which may be the reason for mortality of the larvae. The chitin thickness in the treated larvae was measured at various parts like head, thorax, abdomen, siphon tube and compared with that of the control. Further work is in progress to isolate the active constituent responsible for the dechitinising property.
Page(s): 290-292
ISSN: 0975-1092 (Online); 0972-592X (Print)
Source:NPR Vol.6(4) [July-August 2007]

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