![[Photograph]: Canker caused by white pine blister rust, seen as a discolored area on the main stem of a white pine, from which extends a dead branch with brown needles. [Photograph]: Canker caused by white pine blister rust, seen as a discolored area on the main stem of a white pine, from which extends a dead branch with brown needles.](https://webarchive.library.unt.edu/eot2008/20090305014654im_/http://www.ncrs.fs.fed.us/4502/local-resources/images/white_pine_br.jpg)
Blister rust canker on stem of a white pine.
Photo by M. Ostry.
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The issue
Eastern white pine (Pinus strobus) is seriously affected by white pine blister
rust, a disease caused by Cronartium ribicola, an exotic fungus that has hindered
attempts to restore this valuable species to eastern forests.
What are we doing about it?
A joint project with Forest Service Forest Health Protection and
the National Forest System is aimed at testing various management
techniques and genetically improved seedlings from a breeding program
to minimize damage from blister rust and to improve pine growth.
Research products
Katovich,
S.A.; O’Brien, J.G.; Mielke, M.E.; Ostry, M.E. 2004.
Restoration
and management of eastern white pine within high blister rust hazard
zones in the Lake States. In: Shepperd, W.D.; Eskew,
L.G. comps. Silviculture in special places: Proceedings of the
National Silviculture Workshop; 2003 September 8-11; Granby, CO.
Proceedings RMRS-34. Fort Collins, CO: U.S. Department of
Agriculture, Forest Service, Rocky Mountain Research Station: 135-145.
Ostry,
Michael E. 2000.
Restoring of
white pine in Minnesota, Wisconsin, and Michigan
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