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11,13-Tetradecadienal Major sex pheromone component of the eastern blackheaded budworm, Acleris variana


, : 11,13-Tetradecadienal Major sex pheromone component of the eastern blackheaded budworm, Acleris variana. Journal of Chemical Ecology 20(1): 1-8

(E)-11,13-Tetradecadienal (E11,13-14:Ald) is the major sex pheromone component of the eastern blackheaded budworm (EBB), Acleris variana (Ferm.). The compound was identified in female pheromone gland extracts by coupled gas chromatographic-electroantennographic detection (GCEAD), coupled GC-mass spectrometry in selected ion monitoring mode, and retention index calculations of candidate pheromone components. E11, 1314:Ald alone as trap bait was very attractive to male EBB. Addition of the corresponding diene alcohol or acetate or both did not enhance attraction. (Z)11,13-Tetradecadienal in binary combination with (E)-11,13-14:Ald neither enhanced nor reduced trap catches. Increasing the amounts of pheromone from 0.01 to 10 mu-g increased trap catches, but increase of pheromone quantity above 100 mu-g proportionately reduced attraction. Stabilization of slowly polymerizing E11, 13-14:Ald and development of a sustained, adequate release rate is required for pheromone-based monitoring of EBB populations.

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