Windtunnel and field observations of western spruce budworm responses to pheromone-baited traps
Keywords:
western spruce budworm, <i>Choristoneura occidentalis</i>Abstract
Five trap designs, the Pherocon 1CP, a triangular trap, dome trap, double cone trap and Kendall trap were evaluated for capturing the western spruce budworm, <i>Choristoneura occidentalis</i> Freeman, both in a laboratory-based windtunnel and in an infested stand. Neutral density smoke tests showed the effects of orientation to wind on plume formation as well as highlighting plume structure around larger traps. Moth capture rates in the windtunnel did not always correlate with capture rates under field conditions.
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