Identification of oviposition attractants for Culex quinquefasciatus from fermented Bermuda grass infusions.

Type

Article

Date of Publication

1992

Original Publication

Journal of the American Mosquito Control Association

Volume

8

Series / Issue

Issue: 1

Pages

011-017

Contributed by

American Mosquito Control Association

Notes

Author(s) - Millar JG.Chaney JD.Mulla MS.

 

Abstract

Compounds which attract and stimulate oviposition by gravid Culex quinquefasciatus were isolated and identified from a fermented Bermuda grass infusion. The neutral portion of the ether extract of the aqueous infusion contained the stimulatory materials. Fractionation by liquid chromatography yielded an active fraction containing phenol, 4-methylphenol, 4-ethylphenol, indole and 3-methylindole. A blend of the 5 compounds strongly stimulated oviposition, as did blends of any 4 of them. Bioassays with individual compounds showed that only 3-methylindole consistently induced oviposition, in concentrations spanning 5 orders of magnitude.

Notes

Author(s) - Millar JG.Chaney JD.Mulla MS.