State gathering spruce aphid outbreak data

ASTORIA, Ore. (AP) — The young Sitka spruce behind the GreenWood Resources office in Seaside was so infested with spruce aphids last year it looked like it was moving on its own. The Astorian reports, however, that Oregon Department of Forestry entomologist Christine Buhl and Oregon State University professor David Shaw found only a few spruce aphids when they checked the tree last week. Buhl hopes to collect more data, working with state and private timber representatives to document damage to trees. Despite the potential for spruce aphids to impact a large number of trees, little is known about their full life cycle in Oregon or how much abuse trees can ultimately withstand and still thrive.