Tracking spruce budworm’s potential impact on Maine’s forest economy
This map shows how vulnerable Maine’s forests are to the spruce budworm, a native insect whose periodic outbreaks can strip and kill large areas of spruce and fir. Lighter yellow areas are at low risk, and deeper orange and red areas are at higher risk. The dots are wood-using mills, colored by what they buy: sawlogs for lumber (pink), pulpwood for paper (yellow), and biomass for energy (white). The dashed outlines estimate how far each type of mill can profitably haul wood.
