Glossary


Douglas-fir

(Pseudotsuga menziesii) is the only tree species affected by SNC disease (i.e. the only host of Phaeocryptopus gaeumannii). Symptomatic trees have chlorotic (yellow) needles and decreased needle retention, resulting in sparse crowns and reduced growth. Growth losses in the area of epidemic range from 20-55%. Estimated annual growth impacts exceed $200 million per year.