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Sugar maple decline: An evaluation

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Abstract

The current poor state of health and high rate of death of sugar maples (Acer saccharum Marsh.), particularly along roadsides in the Northeast, is thought to be due primarily to the current prolonged and severe drought, aggravated along roads by the salt applied for winter snow control. Sugar maples appear to be particularly sensitive to drought and other abuse because of a shallow root system and other factors. Sugar maples have a narrow range of site tolerances. They are also particularly sensitive to salt injury. The present evaluation of sugar maple decline is based upon approximately 160 published and perhaps as many unpublished sources; it explores the external factors (biotic and abiotic) and internal factors that could contribute to the problem.

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The author was on the faculty of the University of Massachusetts Forestry Department at the time that the major portion of this article was prepared. The information upon which this paper is based extends through June, 1965. The information to be presented in this paper applies not only to the typical sugar maple (Acer saccharum Marsh.; in the past, A. saccharophorum K. Koch, etc.), but also to the black maple (A. nigrum Michx. f.) and the Florida maple (A. barbatum Michx.; in the past, A. floridanum [Chapm.] Pax), two species taken to be sufficiently similar to the typical sugar maple to deserve only varietal status. However, the author knows too little about the chalk maple (A. leucoderme Small) and the bigtooth maple (A. grandidentatum Nutt.) to extend his remarks to these probable varieties. The author wishes especially to thank the more than 150 pathologists, foresters, and others who so graciously and conscientiously responded to requests for information.

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Westing, A.H. Sugar maple decline: An evaluation. Econ Bot 20, 196–212 (1966). https://doi.org/10.1007/BF02904015

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