European Spruce Sawfly
Gilpinia hercyniae
Summary 2
Gilpinia hercyniae, the European spruce sawfly, was first found in North America near Hull, Quebec, in 1922 (Rose and Lindquist 1985). By 1930, severe damage was occurring in spruce stands in the Lower St. Lawrence–Gaspé region of Quebec. Population levels exploded, and further damage subsequently occurred in New Brunswick and the northeastern United States (Balch 1936a, b, 1937; Blais 1961). Loss of wood from spruce mortality was estimated at 10 million cubic metres (Rose an
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- (c) Jason M Crockwell, some rights reserved (CC BY-NC-ND), uploaded by Jason M Crockwell
- (c) Wikipedia, some rights reserved (CC BY-SA), https://en.wikipedia.org/wiki/Gilpinia_hercyniae
