BEHAVIORAL AND ELECTROPHYSIOLOGICAL ACTIVITY OF THE RACEMATE AND ENANTIOMERS OF A MONOFLUORINATED ANALOG OF EUROPEAN CORN-BORER (LEPIDOPTERA, PYRALIDAE) SEX-PHEROMONE

The racemate and individual enantiomers of 2-fluoro-Z-11-tetradecenyl acetate (2F-Z-11), analogs of a European corn borer moth, Ostrinia nub ilalis (Hubner), female sex pheromone were compared with the natural p heromone, Z-11-tetradecenyl acetate, in field trapping experiments, fl ight tunnel studies, mating disruption assays and electrophysiological experiments. While the racemate and R-2F-Z-11 mimicked the natural fe male sex pheromone, they were not more biologically potent than the ph eromone. The S-2F-Z-11 was largely ineffective in all assays and was, therefore, incompatible with the pheromone receptor system.