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Impact of Looper Defoliation: A Case Study in West Virginia

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In 1984, measurements of site and stand conditions and tree mortality were taken from 141 tenth-acre plots located within stands defoliated by loopers from 1981-1983, including 35 undefoliated control plots. Mortality due to loopers was expanded to the total defoliation area (1 million ac in 1981, 100 thousand in 1982, and 35 thousand in 1983). Loss due to mortality amounted to 2.3 billion board feet (bbf) of sawtimber and 4.2 million cords (cd) of pulpwood, with a total estimated stumpage value of about 345 million dollars. North. J. Appl. For. 4:201-204, December 1987.
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Document Type: Journal Article

Affiliations: Division of Forestry, West Virginia University, Morgantown, WV 26506-61277

Publication date: 01 December 1987

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