Scleroderris Canker -- The Situation in 1980

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Abstract
A European strain of scleroderris canker (Gremmeniella abietina), first recognized in this country in 1975, is well established in New York and Vermont, where it is causing serious losses in red and Scotch pine (Pinus resinosa, P. sylvestris). Although quarantines have been established to prevent its rapid spread, the disease is present also in Maine and in the Canadian provinces of New Brunswick, Quebec, and Newfoundland. To determine the potential for widespread damage, most U.S. native conifers were field-tested for susceptibility. All pines tested proved highly susceptible, and other conifers were susceptible to varying degrees. The best opportunity for control lies in developing genetically resistant conifers.

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