Editorial Type:
Article Category: Research Article
| Online Publication Date: 01 Oct 2000
A Mosquito Larvicidal Diterpenoid Isolated from Podocarpus totara D. Don ex Lambert
A Mosquito Larvicidal Diterpenoid Isolated from Podocarpus totara D. Don ex Lambert
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Page Range: 474 – 477
Totarol, a diterpenoid phenol isolated from Podocarpus totara (D. Don ex Lambert) root bark, was found to be active against second- and fourth-instar Culex pipiens Coquillett with the 24 h LC50 values of 0.25 and 0.37 μg/mL, respectively. The mosquito larvicidal activity against C. pipiens increased when bioassays were extended to 48 h. Structural elucidation of totarol was by means of 1H-NMR, 13C-NMR, and GC-MS analysis.
Keywords:
Podocarpus totara
; totarol; mosquito larvicidal activity
Copyright: © 2000 Georgia Entomological Society, Inc.
Contributor Notes
2To whom correspondence should be addressed.
3Department of Agricultural Chemistry and Soil Science, The University of Sydney, Sydney, NSW 2006, Australia.
4Department of Agricultural Chemistry, Korea University, Seoul 136-701, South Korea.
Received: 15 Nov 1999
Accepted: 04 Apr 2000