A comparison of traps and trap trees for capturing Douglas-fir beetle, Dendroctonus pseudotsugae (Coleoptera: Scolytidae)
Abstract
We compared pheromone-baited traps and trap trees for managing Douglas-fir beetle (DFB), Dendroctonus pseudotsugae Hopkins populations. Pheromone-baited traps caught significantly more DFB than did trap trees. More male DFB were caught in pheromone-baited traps than in trap trees, while significantly higher numbers of females were caught in the trap trees. Additional benefits of pheromone-baited traps include, easy deployment, less mortality of some beneficial insects, and low cost.
Key words: Dendroctonus pseudostugae; Scolytidae; pheromones; trapping; trap trees
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