A bloom of Western Gall Rust forms on the branch of a Shore Pine on Wrangell Island. A new US Forest Service study is designed to monitor the spread of diseases in the tree across the region.
The U.S. Forest Service has installed permanent monitoring locations on Wrangell Island and in other areas of Southeast Alaska to track shore pine tree survival and health status over time and to gather basic information about the insects, diseases, and other factors affecting trees.
This two-year project has a total of 50 permanent plots that are installed at five main locations in Southeast, including Wrangell Island, Prince of Wales Island, Mitkof Island, north Chichagof Island and Douglas/Juneau, with 10 plots at each location.
Shore pine grows on sites with nutrient-poor, saturated soils,...
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