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Title: Cankers on Western Quaking Aspen
Author: Johnson, David W.; Beatty, Jerome S.; Hinds, Thomas E.;
Source: Forest Insect & Disease Leaflet 152. [Radnor, PA:] U.S. Dept. of Agriculture, Forest Service, Northern Area State & Private Forestry
Publication Series: Forest Insect and Disease Leaflet (FIDL)
Description: Long appreciated for its esthetic and shade tree value and its importance for wildlife, aspen is also capable of excellent growth and high yields and thus is an important commercial timber species. However, aspen has one major drawback-its soft bark is easily wounded by abiotic factors, animals, and insects. Subsequently, these wounds can be invaded by disease organisms. In some areas of the Rocky Mountains, for example, elk gnaw extensively on the bark, leading to rapid deterioration of the stand. However, canker diseases are by far the most serious causes of tree mortality.
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Johnson, David W.; Beatty, Jerome S.; Hinds, Thomas E. 1995. Cankers on Western Quaking Aspen. Forest Insect & Disease Leaflet 152. [Radnor, PA:] U.S. Dept. of Agriculture, Forest Service, Northern Area State & Private Forestry
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