JON SWEENEY, PETER DE GROOT, LINDA MACDONALD, SANDY SMITH,CHRISTIAN COCQUEMPOT, MARC KENIS, AND JERZY M. GUTOWSKI
Natural Resources Canada, Canadian Forest Service

SERG Project #2002/01
Year of Project: 2002
Paper Published: 2004

Cortical and sapwood volatiles were collected in situ from red spruce, Picea rubens (Sarg.), trees infested with Tetropium fuscum (F.), to determine the relative concentrations and enantiomer ratios of monoterpenes emitted.This information was used to create a synthetic “spruce blend” lure that was tested in various trap designs for efÞcacy in capturing T. fuscum, and Tetropium castaneum L.in Þeld bioassays conducted on McNabs Island, Nova Scotia, in 2001 and 2002 and in Poland and Switzerland in 2002.Response of other cerambycid species was measured opportunistically. Cross-vane pan traps baited with spruce blend caught signiÞcantly more T. fuscum than unbaited traps or traps baited with racemic
-pinene, ethanol, or both.The addition of an ethanol lure to spruce blendÐbaited traps signiÞcantly increased capture of T. fuscum and T. castaneum. There were no signiÞcant differences among trap designs in mean catch of either Tetropium species.Spruce blend was also signiÞcantly attractive to Monochamus urussovii (Fischer) and, when paired with an ethanol lure, was signiÞcantly attractive to Spondylis buprestoides L. Asemum striatum L.was signiÞcantly attracted to racemic
-pinene but was not attracted to spruce blend or spruce blend plus ethanol.None of the lures tested were signiÞcantly attractive to Stictoleptura rubra L.or Alosterna tabacicolor (DeGeer).