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Gum spots were studied in 116 black cherry (Prunus serotina Ehrh.) trees in West Virginia. Bark beetles are the major cause of gum spots in both black cherry poletimber and sawtimber trees. Approximately 90 percent of all gum spots in the bole sections are caused by bark beetles. Cambium miners cause few gum spots in the lower 6 m of the trees and virtually none in the quality zone. Bark beetle-caused gum spots are grade defects in both veneer and factory grade sawlogs. Cambium miner-caused gum spots cause little degrade in veneer logs and none in factory grade 1 and 2 sawlogs.
Document Type: Journal Article
Research forester, Northeastern Forest Experiment Station, Morgantown, West Virginia 24740
Publication date: February 1, 1984
More about this publication?
Each regional journal of applied forestry focuses on research, practice, and techniques targeted to foresters and allied professionals in specific regions of the United States and Canada. The Southern Journal of Applied Forestry covers an area from Virginia and Kentucky south to as far west as Oklahoma and east Texas.