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U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Assessment & Applied Sciences

Forest Health News

Explore articles and information on current forest insect and disease conditions across the United States.

Mapping & Reporting

Forest Health Protection (FHP) Mapping & Reporting conducts surveys to detect and appraise insect infestations, disease conditions and man-made stresses affecting trees. FHP Mapping & Reporting establishes a monitoring system throughout the forests of the United States to determine detrimental changes or improvements that occur over time, and report annually concerning such surveys and monitoring.

Mapping and Reporting Website Image

US Forest Service, forest insect and disease mapping and reporting.

Aviation Safety & Aerial Survey

Aviation Safety & Aerial Survey include insect and disease surveys, aerial photography and aerial application to assist federal and state partners and the public in meeting forest health objectives. The primary function of FHP aviation is to implement safe and efficient operations considering state of the art tools, technology, and philosophy embracing the principles of sound risk management applied throughout the system.

Learn more about aviation safety & aerial survey

Aviation Safety Photo

Equipment & Application Technologies

Equipment and Application Technologies focuses on development of pest control equipment and application technologies to increase the efficacy and safety of pest control while decreasing the cost and unintended environmental impacts. Equipment and Application Technologies provides support to personnel within the Forest Service as well as to other government agencies and private individuals.

Learn more about equipment & application technologies

Pesticide Application Photo

Pesticide Application - high pressure spray for insect control in seed orchard. Photo by Larry R. Barber, USDA Forest Service,

Forest Vegetation Simulator Models

The Forest Vegetation Simulator (FVS) is a family of models used for predicting forest stand dynamics (tree growth, mortality, regeneration, management, disturbance, etc.) throughout the United States. The Forest Health Assessment and Applied Sciences Team supports a variety of insect and pathogen models that allow FVS users to incorporate forest pest disturbances into their FVS projections.

Learn more about forest vegetation simulator models

Mistletoe Model Example Image

Image represents a stand of Douglas-fir in the Fremont National Forest as simulated with the South Central Oregon Northeastern California variant of the Forest Vegetation Simulator (FVS) and the Dwarf Mistletoe Model. View animation (Opens in new window/tab) Opens in new window/tab