Skip to Main Content
Photographic guide of selected external defect indicators and associated internal defects in northern red oakAuthor(s): Everette D. Rast
Source: Res. Pap. NE-511. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiement Station. 20p.
Publication Series: Research Paper (RP)
Station: Northeastern Research Station
PDF: Download Publication (6.28 MB)
DescriptionTo 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 aids the individual in identifying the surface defect indicator and also shows the progressive stages of the defect throughout its development. It illustrates and describes eight types of external defect indicators and associated defects that are particularly difficult to evaluate.
- 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, email@example.com if you notice any errors which make this publication unusable.
- 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.
CitationRast, Everette D. 1982. Photographic guide of selected external defect indicators and associated internal defects in northern red oak. Res. Pap. NE-511. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiement Station. 20p.
KeywordsDefect identification, photo guide, northern red oak, quality assessment
- Radio-frequency dielectric drying of short lengths of northern red oak
- Heartwood taper in northern red oak (Quercus rubra L.)
- Insects that damage northern red oak acorns
XML: View XML