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Title: Photographic guide of selected external defect indicators and associated internal defects in sugar maple

Author: Rast, Everette D., Beaton, John A., Sonderman, David L.; Rast, Everette D.; Beaton, John A.; Sonderman, David L.

Date: 1991

Source: Res. Pap. NE-647. Radnor, PA: US. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 35 p.

Publication Series: Research Paper (RP)

Description: To properly classify or grade logs or trees, one must be able to correctly identify defect indicators and assess the effect of the underlying defect on possible end products. This guide assists the individual in identifying the surface defect indicator and shows the progressive stages of the defect throughout its development for sugar maple. Eleven types of external defect indicators and associated defects that are particularly difficult to evaluate are illustrated and described.

Keywords: defect identification, photo guide, sugar maple, quality assessment

Publication Notes:

  • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
  • This publication may be available in hard copy. Check the Northern Research Station web site to request a printed copy of this publication.
  • Our on-line publications are scanned and captured using Adobe Acrobat. During the capture process some typographical errors may occur. Please contact Sharon Hobrla, shobrla@fs.fed.us if you notice any errors which make this publication unusable.

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Citation:


Rast, Everette D., Beaton, John A., Sonderman, David L. 1991. Photographic guide of selected external defect indicators and associated internal defects in sugar maple. Res. Pap. NE-647. Radnor, PA: US. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 35 p.

 


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