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Title: Effectiveness of pyriproxyfen-controlled release block against larvae of Aedes (Stegomyia) aegypti in Kuala Lumpur, Malaysia.
Authors: Chen, CD
Andy-Tana, WA
Loke, SR
Lee, HL
Yasmin, AR
Sofian-Azirun, M
Issue Date: Dec-2008
Publisher: WHO Regional Office for South-East Asia.
Place of publication: New Delhi
Language: English
Abstract: This study was conducted to evaluate the effect of a commercially available pyriproxyfen, an insectgrowth regulator (IGR) on the larvae of a dengue vector, Ae. aegypti. The study site was the surroundingarea of the Medical Entomology Unit, Institute for Medical Research (IMR), Kuala Lumpur (N03°10.167’,E101°41.919’). Pyriproxyfen-controlled release blocks with dosages of 10% w/w and 20% w/w wereused to treat a set of earthen jars placed outdoors. Untreated jars were also set up as controls. Fifty laboratory-bred 2nd instar larvae were introduced into each earthen jar and observed daily. Thenumber of adults that emerged was recorded and the larval mortality was calculated. The indicators of effectiveness of IGR for these studies were: (i) duration of effectiveness, and (ii) percentage of emergence inhibition (EI). There was a significant difference in the number of emerged adults obtained from the untreated and treated earthen jars up to 25 weeks (p
Description: Dengue Bulletin. 2008; 32: 199-206.
Keywords: Aedes
Dengue --preventon and control
Aedes aegypti
Controlled release block
Duration of effectiveness
Duration of effectiveness
Emergence inhibition
ISSN: 0250-8362
Appears in Collections:Dengue Bulletin

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