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1 November 2003 Role of Bacteria in Mediating the Oviposition Responses of Aedes albopictus (Diptera: Culicidae)
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Abstract

The responses of Aedes albopictus to sources of oviposition attractants and stimulants were evaluated with a behavioral bioassay in which females attracted to odorants emanating from water were trapped on screens coated with an adhesive. Gravid mosquitoes were attracted to volatiles from larval-rearing water and soil-contaminated cotton towels. Bacteria were isolated from these substrates and from an organic infusion made with oak leaves. Through fatty acid-methyl ester analyses, six bacterial isolates from larval-rearing water, two isolates from soil-contaminated cotton towels, and three isolates from oak leaf infusion were identified to species. The response of gravid mosquitoes to these isolates was also evaluated in behavioral bioassays. Water containing Psychrobacter immobilis (from larval-rearing water), Sphingobacterium multivorum (from soil-contaminated cotton towels), and an undetermined Bacillus species (from oak leaf infusion) elicited significantly higher oviposition than control water without bacteria. Only volatiles collected from larval rearing water elicited significant electroantennogram responses in females.

Jonathan D. Trexler, Charles S. Apperson, Ludek Zurek, César Gemeno, Coby Schal, Michael Kaufman, Edward Walker, D. Wesley Watson, and Lance Wallace "Role of Bacteria in Mediating the Oviposition Responses of Aedes albopictus (Diptera: Culicidae)," Journal of Medical Entomology 40(6), 841-848, (1 November 2003). https://doi.org/10.1603/0022-2585-40.6.841
Received: 13 August 2002; Accepted: 1 December 2002; Published: 1 November 2003
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