Sample Sizes Required To Estimate Defoliation of Spruce and Balsam Fir Caused by Spruce Budworm Accurately

Author: MacLean David A.   MacKinnon Wayne E.  

Publisher: Society of American Foresters

ISSN: 0742-6348

Source: Northern Journal of Applied Forestry, Vol.15, Iss.3, 1998-09, pp. : 135-140

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Abstract