Chemically mediated host finding by Biosteres (Opius) longicaudatus, a parasitoid of tephritid fruit fly larvae
Article Received: 06 July 1976 Revised: 09 August 1976 Abstract
Host finding by the fruit fly parasitoid
Biosteres ( Opius) longicaudatus Ashmead was found to involve attraction to fermentation products emanating from rotting fruit, a probable site for location of host larvae. Bioassays conducted in the greenhouse with all saturated 1-, 2-, and 3-carbon primary alcohols, aldehydes, and organic acids indicated that acetaldehyde was the most active agent followed by ethanol and acetic acid. Rotting fruit was attractive irrespective of the presence of host larvae, and attraction was attributed to fungal fermentation products rather than to kairomones from host larvae. Key words Host finding Biosteres (Opius) longicaudatus Ashmead ethanol acetaldehyde fungi fermentation Tephritidae parasitoid References
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© Plenum Publishing Corporation 1977