Ring Shake Associated with Sapsucker Injury
Alex L. Shigo
Jan 1963 · Northeastern Forest Experiment Station, Forest Service, U.S. Department of Agriculture
Ebook
10
Pages
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About this ebook
S2In the Northeast the common species of sapsucker is Sphyrapicus varius varius L., the yellow-bellied sapsucker (fig. 1). Some recent observations indicated that there is a direct association between sapsucker injury and the separation of the wood at the growth ringscommonly called ring shakein living softwood and hardwood trees.S3.
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