This meeting will be held concurrently with the New England Society of American Foresters. The American Phytopathological Society along with several other organizations are sponsoring an online workshop and open forum on exotic forest pests and world trade in April. Over 30 papers on exotic pests, pathways, and mitigation measures will be included. Two positions, closing date on February 23, 2001. The tiny scale insects, found on the tree trunk and branches, feed on sap in the inner bark.
White wax covers the bodies of the scales.
When trees are heavily infested, they appear to be covered by white wool. Minute wounds and injuries caused by the scale insects eventually enable the Nectria fungus to enter the tree. Nectria causes cankers on the tree, killing areas of the cambium on the stem and branches. If enough tissue is killed, the tree will be girdled and die. Other trees may linger for several years, eventually succumbing to Nectria or other pathogens.