Environmental Entomology (1982) 11, 968-971

George W. Schultz, Yih-Shen Hwang, Wayne L. Kramer, Harold Axelrod and Mir S. Mulla (1982)
Field evaluation of ovipositional repellents against Culex (Diptera: Culicidae) mosquitoes
Environmental Entomology 11 (4), 968-971
Abstract: Straight-chain aliphatic carboxylic acids in the C₈ to C₁₀ range are known to be effective ovipositional repellents under laboratory conditions. Under semi-field conditions, octanoic acid (C₈) was tested in sheet metal cylinders in experimental ponds. Results showed that at a concentration of 15-ppm octanoic acid was effective in repelling ovipositing mosquitoes. Under field conditions, nonanoic acid (C₉) was tested in whole experimental ponds at several concentrations. Complete ovipositional repellency was achieved for 1 day at 25 ppm, 2 days at 50 ppm, about 5 days at 75 ppm, and about 6 to 7 days at 150 ppm.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)

Research topic(s) for pests/diseases/weeds:
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Culex quinquefasciatus
	Culex tarsalis
	Aedes aegypti