Drought in the West - Insects

Abstract

Author: Brandon McWilliams

This fact sheet offers a summary of the interaction between drought and forest insects in the Western U.S.

Drought
Forest Insects
Forest Health
Bark Beetles
Sapfeeders
Defoliators

Download (PDF 431KB): https://research.fs.usda.gov/sites/default/files/2025-12/pnw-drought_interactions_-_insects_-_update_v1.pdf

Drought Forest Insects Forest Health Bark Beetles Sapfeeders Defoliators

Last updated December 17, 2025