Effects of sub lethal concentrations of synthetic insecticides and Callitris glauscophylla extracts on the development of Aedes aegypti

Shaalan, Essam Abdel-Salam, Canyon, Deon Vahid, Younes, Mahamed Wagdi Faried, Abdel-Wahab, Hoda, and Mansour, Abdel-Hamid (2005) Effects of sub lethal concentrations of synthetic insecticides and Callitris glauscophylla extracts on the development of Aedes aegypti. Journal of Vector Ecology, 30 (2). pp. 295-298.

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Abstract

Synthetic and botanical insecticides can have a profound effect on the developmental period, growth, adult emergence, fecundity, fertility, and egg hatch, resulting in effective control at sub-lethal concentrations. This paper investigated sub-lethal concentrations of fenitrothion, lambda-cyhalothrin, and Callitris glaucophylla Joy Thomps. & L.P. Johnson (Cupressaceae) extract to characterize their effects on the development of Aedes aegypti L. (Diptera: Culicidae) mosquito larvae. The LC25, LC50, and LC75 (four replicates) were used for each synthetic insecticide and the LC25 and LC75 (four replicates) were used for C. glaucophylla. Observations of larval mortality, duration of larval stage, pupal mortality, duration of pupal stage, adult emergence, sex ratio, and malformations were recorded over 14 days. A dose-response effect was observed for all insecticides. Although C. glaucophylla extract doses were higher than synthetic insecticide doses, the LC75 treatment outperformed synthetics by completely prohibiting adult emergence. Consequently, this botanical is recommended for field application either in combination with synthetic or natural insecticides or alone.

Item ID: 6747
Item Type: Article (Refereed Research - C1)
Keywords: botanical; insecticide; mosquito; phytochemical; synergism
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Reproduced with permission from Journal of Vector Ecology.

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ISSN: 1948-7134
Date Deposited: 01 Mar 2010 04:49
FoR Codes: 11 MEDICAL AND HEALTH SCIENCES > 1117 Public Health and Health Services > 111799 Public Health and Health Services not elsewhere classified @ 100%
SEO Codes: 92 HEALTH > 9299 Other Health > 929999 Health not elsewhere classified @ 100%
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