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Title: Evaluation of the grass infusion-baited autocidal ovitrap for the monitoring of Aedes adgypti (L).
Authors: Siang Tang, Choon
Lam-Phua, Sai Gek
Chung, Youne Kow
D Giger, Andrew
Issue Date: 2007
Publisher: WHO Regional Office for South-East Asia.
Place of publication: New Delhi
Language: English
Abstract: Autocidal ovitraps used for the monitoring of Aedes (Stegomyia) aegypti (L.) (Diptera: Culicidae) in Singapore are routinely stocked with cow-grass (Axonopus commpressus) infusion. The optimum concentration of this infusion was determined to be a 1:4 dilution of a stock infusion prepared by fermenting dried cow-grass in tap water at a rate of 10g/l. Aedes aegypti females confined in an empty room and offered an ovitrap baited with cow-grass in competition with a range of common oviposition sites (plastic bottle, paper cup, plastic pail, flower pot plate, Coca-Cola can, and vase) laid significantly more eggs in the ovitrap than in the next most competitive container. The number of eggs laid in the ovitrap did not change with the competitiveness of the other sites offered, nor with the number of other sites, but it did change – albeit non-linearly – with the number of mosquitoes released. Implications for the interpretation of quantitative ovitrap data for the monitoring of mosquito populations are discussed.
Description: Dengue Bulletin. 2007 Dec; 31: 131-140.
Keywords: Oviposition
Mosquito Control
Aedes Aegypti
ISSN: 0250-8362
Appears in Collections:Dengue Bulletin

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