Native insects and pathogens are an important part of a healthy forest ecosystem, but when environmental and biological conditions favor their development into outbreak status they can cause significant losses to forests. Several of these insects and pathogens, such as bark beetles and root diseases, have had extensive impacts forests in western and southern forests. Forest Health Protection along with state, Federal and Tribal partners survey, monitor and manage infestations of these native pest outbreaks.

Native Forest Insects
Native Forest Pathogens
Abiotic Forest Damage