Decay Following Thinning of Sweetgum Sprout Clumps: 26-Year Results
Butt rot in living sweetgum (Liquidambar styraciflua) stems was observed 15 and 26 years after the companion living stems were cut in a 55-year-old stand of sprout origin near Tallulah, Louisiana. Living stems had insignificant or no decay 15 years after thinning. Twenty-six years after thinning, an extensive amount of decay had developed in all living stems originating from cut stubs that had split longitudinally down the side during thinning. However, the amount of decay was insignificant or absent when clean cuts had been made which resulted in grown-over stubs that contained water, decay, and anaerobic bacteria. Split stubs did not retain water, and decay had spread into the living stems. Decay risk associated with thinning sprout clumps can apparently be eliminated by undercutting and taking care to prevent splitting during felling.
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Document Type: Journal Article
Affiliations: Principal plant pathologist, USDA Forest Service, Southern Forest Experiment Station, Southern Hardwoods Laboratory, Stoneville, Mississippi 38776
Publication date: 01 February 1985