Elytroderma needle cast
Damage, symptoms and biology
Damage is caused by branch and stem deformation, and growth reduction resulting from defoliation. Although the impact of the disease is highest on young trees or trees with poor crowns, infected mature trees may be predisposed to root disease or bark beetle attack. Diseased trees are also considered to have negative visual impact in high-value recreational sites.
The incidence of this disease is highest where moist environmental conditions prevail, often near lakes and streams.
Canadian Forest Service Publications
Information on host(s)
Jack pine, Jeffrey pine