Abstract
Abstract The principal component of the female sex pheromone of the European pine moth Dendrolimus pini L. (Lasiocampidae) was identified as (Z ,E)-5 ,7-dodecadienal by capillary gas chromatography, mass spectrometry, single receptor analyses, and field trapping tests. Traps initially baited with 1000 μg of (Z,E)-5,7-dodecadienal (>99%ZE) effectively monitored low D. pini populations over 6 weeks without rebaiting. Captures disappeared upon addition of ≧1% of either (E,Z)-5,7-dodecadienal or (Z,E)-5,7-dodecadienyl acetate, the key stimulants for additional receptor cell types located in male antennal hair sensilla.
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