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Journal of Chemical Ecology

, Volume 21, Issue 11, pp 1847–1860 | Cite as

Evaluation of organic infusions and synthetic compounds mediating oviposition inAedes albopictus andAedes aegypti (Diptera: Culicidae)

  • Sandra A. Allan
  • Daniel L. Kline
Article

Abstract

Oviposition responses of gravidAedes albopictus andAe. aegypti were evaluated to natural organic infusions (hay infusion, larval rearing water, and field-collected larval water) as well as compounds isolated from hay infusion (3-methylindole, 4-methylphenol, 4-ethylphenol, indole, and phenol) known to elicit oviposition inCulex mosquitoes. In laboratory bioassays, significant oviposition responses were obtained fromAe. albopictus, but not fromAe. aegypti, to dilutions of hay infusion and field water. Oviposition responses of both species were moderate to the synthetic compounds tested in the laboratory (0.01–100 µg/liter). Only 3-methylindole (0.1 µg/liter) and 4-ethylphenol (1.0 µg/liter) elicited significantly more oviposition byAe. albopictus than did well water. Of the synthetic compounds tested withAe. aegypti, only phenol (1.0 µg/liter) and 4-ethylphenol (0.1 µg/liter) elicited significantly more oviposition than did well water. Significant repellency or oviposition deterrence for both species occurred in response to at least one high concentration of most of the compounds tested. In field cage evaluations, oviposition responses byAe. albopictus were strongest to larval water and field water, moderate to hay infusion and 3-methylindole (100 µg/liter), and low to well water. A mixture of five synthetic compounds mimicking hay infusion was no more effective than 3-methylindole alone. ForAe. aegypti, oviposition responses were greatest to larval water and least to 3-methylindole. In an olfactometer, gravid females of both species oriented more to field water than to well water and onlyAe. albopictus oriented more to larval water or hay infusion than well water. In general, gravidAe. albopictus responded more strongly to oviposition stimuli than didAe. aegypti.

Key Words

Insecta Diptera Culicidae Aedes albopictus Aedes aegypti oviposition attractants behavior 

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Copyright information

© Plenum Publishing Corporation 1995

Authors and Affiliations

  • Sandra A. Allan
    • 1
  • Daniel L. Kline
    • 1
  1. 1.Medical and Veterinary Entomology Research LaboratoryUnited States Department of Agriculture Agriculture Research ServiceGainesville

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