Abstract
An alarm pheromone, C15H24, was isolated from the spotted alfalfa aphid,Therioaphis maculata. The IR, PMR, and [13C]NMR data showed that this alarm pheromone is germacrene A (structure IIIa). The negative plain curve in the ORD of the alarm pheromone implies that the pheromone is (−)-germacrene A (structure IIIb).
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Nishino, C., Bowers, W.S., Montgomery, M.E. et al. Alarm pheromone of the spotted alfalfa aphid,Therioaphis maculata buckton (Homoptera: Aphididae). J Chem Ecol 3, 349–357 (1977). https://doi.org/10.1007/BF00988450
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DOI: https://doi.org/10.1007/BF00988450