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Arboriculture & Urban Forestry Online
Volume 17, Issue 8 — August 1991

Branch Pruning Wound Closure    (View PDF)

Dan Neely

Abstract: Branches were pruned from 10 species of trees by the "Shigo" and the conventional methods. The branches (four per tree, five trees per species) averaged 50 to 75 mm (2 to 3 in) in diameter. Wounds from conventional cuts were 30 to 50 percent larger than wounds from Shigo cuts. There was little closure of Shigo wounds during the first year. After four years, the conventional wounds were smaller than the Shigo wounds on six species, approximately the same size on one species, and larger on three species.


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