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1 June 2007 Limonene: Attractant Kairomone for White Pine Cone Beetles (Coleoptera: Scolytidae) in an Eastern White Pine Seed Orchard in Western North Carolina
Daniel R. Miller
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Abstract

I report on the attraction of the white pine cone beetle,Conophthorus coniperda (Schwarz) (Coleoptera: Scolytidae), to traps baited with the host monoterpene limonene in western North Carolina. Both ( )- and (−)-limonene attracted male and female cone beetles to Japanese beetle traps in an eastern white pine,Pinus strobus L., seed orchard near Murphy, NC. Catches of cone beetles were directly proportional to the release rate of (−)-limonene; ( )-limonene was not tested for dose response. Attraction of cone beetles to the pheromone (±)-trans-pityol was increased significantly by both enantiomers of limonene. In all experiments, catches ofC. coniperda were strongly male biased with no treatment effect on sex ratio. (−)-Limonene had no effect on trap catches of the predatorEnoclerus nigripes (Say) to pityol, whereas ( )-limonene interrupted the attraction ofE. nigripes to traps baited with pityol. Of six monoterpenes commonly found in white pine cones, only (−)-α-pinene elicited attraction ofE. nigripes to Japanese beetle traps.

Daniel R. Miller "Limonene: Attractant Kairomone for White Pine Cone Beetles (Coleoptera: Scolytidae) in an Eastern White Pine Seed Orchard in Western North Carolina," Journal of Economic Entomology 100(3), 815-822, (1 June 2007). https://doi.org/10.1603/0022-0493(2007)100[815:LAKFWP]2.0.CO;2
Received: 3 May 2006; Accepted: 26 February 2007; Published: 1 June 2007
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KEYWORDS
Cleridae
Conophthorus coniperda
Enoclerus nigripes
kairomone
Scolytidae
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