Sugar-maple Borer Injury in Four Hardwood Stands in New Hampshire
Alex L. Shigo, William B. Leak, Stanley M. Filip
Abstract
Alex L. Shigo, William B. Leak, Stanley M. Filip
Abstract
Forty-three percent of 348 sugar-maple trees, Acersaccharum Marsh., in 60 plots, in four hardwood stands were injured by the sugar-maple borer, Glycobiusspeciosus (Say). The percentage of injured trees was greater in uneven-aged stands than in even-aged stands. The microorganisms isolated from discolored and decayed wood associated with borer injuries were the same as those isolated from discolored and decayed wood associated with wounds on sugar maple.
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Forty-three percent of 348 sugar-maple trees, Acersaccharum Marsh., in 60 plots, in four hardwood stands were injured by the sugar-maple borer, Glycobiusspeciosus (Say). The percentage of injured trees was greater in uneven-aged stands than in even-aged stands. The microorganisms isolated from discolored and decayed wood associated with borer injuries were the same as those isolated from discolored and decayed wood associated with wounds on sugar maple.
Key concepts: Maple, Hardwood, Sugar, Yellow birch, Aceraceae, Marsh, Biology, Forestry