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Title: Red Pine Pocket Mortality - Unknown Cause (Pest Alert)
Author: USDA Forest Service,;
Source: NA-FB/P-30 - 1985. Newtown Square, PA:U.S. Dept. of Agriculture, Forest Service, Northern Area State & Private Forestry
Publication Series: Program Aid
Description: Continuing mortality of red pine from an unknown cause has been observed in 30 to 40 year old plantations in southern and west central Wisconsin. A single tree or small group of trees die, followed by mortality of adjacent trees. These circular pockets of dead trees expand up to 0.3 acre per year.
Keywords: Reduced leader growth, needle loss.
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USDA Forest Service 1985. Red Pine Pocket Mortality - Unknown Cause (Pest Alert). NA-FB/P-30 - 1985. Newtown Square, PA:U.S. Dept. of Agriculture, Forest Service, Northern Area State & Private Forestry
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