This annual report of the Forest Service’s Forest Health Monitoring program describes research by Forest Service scientists and partners and presents forest health status and trends from a national or multistate regional perspective.

This report about the agency’s Forest Health Protection program includes the organizational structure, an overview of the guiding legislation and policies, and highlights of the core program areas: surveying and monitoring, technical and financial assistance, treatments, methodology and technology development, and outreach and partnerships.

This annual report details impacts on forests from various insects and diseases. Compiled by Forest Health Protection staff, the report contains maps of damage (mortality and defoliation) and discusses recent trends in monitoring and management of forest pests. The 2023 edition includes spotlights on how the agency is responding to specific threats.