Year:
1985
Publication type:
Research Paper (RP)
Primary Station(s):
Northern Research Station
Historical Station(s):
Northeastern Research Station
Source:
Res. Pap. NE-560. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 22 p.
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 aids the individual in identifying the surface defect indicator and also shows the progressive stages of the defect throughout its development for black cherry. It illustrates and describes seven types of external defect indicators and associated defects that are particularly difficult to evaluate.
Citation
Rast, Everette D.; Beaton, John A. 1985. Photographic guide to selected external defect indicators and associated internal defects in black cherry. Res. Pap. NE-560. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 22 p.