Which pest usually attacks logging slash, blowdowns, or recently dead or dying trees, and is common after forest fires?

Which pest usually attacks logging slash, blowdowns, or recently dead or dying trees, and is common after forest fires?

• A. Pine engraver beetle
• B. Bark beetles
• C. Cypress tip moth
• D. Western spruce budworm

Answer: (A)

This question is about recognizing a pest that specializes in weakened pine wood, especially material like logging slash, blowdowns, and recently dead or dying trees, with fires creating ideal conditions for outbreaks. Pine engraver beetle is a small bark beetle that colonizes stressed pines, often attacking freshly felled or downed timber and trees weakened by drought, aging, or fire damage. After a forest fire, many pines are stressed or dead and there is plenty of slash and exposed bark, providing ready breeding sites. The beetles bore under the bark to feed and reproduce, producing galleries and pheromone signals that draw more beetles and can lead to rapid, dense infestations in the affected material. That close alignment with pine hosts and disturbed wood makes this species the typical pest in post-fire slash and downed-tree scenarios. Bark beetles is a broader group that includes many species with different hosts and preferences, so it’s less precise for this specific situation. Cypress tip moth and Western spruce budworm target other tree species and have different feeding and outbreak patterns, not the classic match for pine slash and fire-damaged stands.

This question is about recognizing a pest that specializes in weakened pine wood, especially material like logging slash, blowdowns, and recently dead or dying trees, with fires creating ideal conditions for outbreaks. Pine engraver beetle is a small bark beetle that colonizes stressed pines, often attacking freshly felled or downed timber and trees weakened by drought, aging, or fire damage. After a forest fire, many pines are stressed or dead and there is plenty of slash and exposed bark, providing ready breeding sites. The beetles bore under the bark to feed and reproduce, producing galleries and pheromone signals that draw more beetles and can lead to rapid, dense infestations in the affected material. That close alignment with pine hosts and disturbed wood makes this species the typical pest in post-fire slash and downed-tree scenarios.

Bark beetles is a broader group that includes many species with different hosts and preferences, so it’s less precise for this specific situation. Cypress tip moth and Western spruce budworm target other tree species and have different feeding and outbreak patterns, not the classic match for pine slash and fire-damaged stands.