Wounds and Decay Caused by Removing Large Companion Sprouts of Oaks
Abstract:When oak companion sprouts larger than about 3 inches in diameter at the base are cut, they expose the remaining stem to decay. The aims of the present work are the determination of the amount of decay that develops following the different methods of companion sprout elimination and the rates of healing of different types and sizes of wounds. Companion sprouts of different sizes and with different types of crotches were removed by cutting flush with the remaining stem, cutting off at 8 feet, and girdling. The smaller the wound the more rapidly it healed. Due to bark dieback and stow healing, wounds about 6 inches wide or wider did not heal back to their original size until 4 years had elapsed. At the end of 5 years one-half of the girdled trees and 3-foot stubs had died back to the crotch. The other half bore living sprouts.
Document Type: Journal Article
Affiliations: Pathologist, Division of Forest Pathology, Bureau of Plant Industry, U. S. Department of Agriculture, Washington, D. C.
Publication date: March 1, 1943
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