Pollarding and a possible explanation of the neolithic elmfall |
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| Authors: | Dagfinn Moe Oliver Rackham |
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| Institution: | (1) Botanical Institute, University of Bergen, Allégatan 41, N-5007 Bergen, Norway;(2) Corpus Christi College, Botany School, University of Cambridge, CB2 3EA Cambridge, England, UK |
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| Abstract: | Sections of two pollarded parkelms (Ulmus glabra) from Damsgaard, Bergen, west Norway have been studied. Changes in annual ring-width are attributed partly to management, namely pollarding, and partly to pathogenic attacks, probably by Ceratocystis ulmi. The oldest attack on the trees dates back to 1826: so far the oldest known record of Dutch elm disease in Norway. Pollarding may be an important factor in attacks by the pathogen within parkelms. A possible relationship between pollarding, the pathogen and the Neolithic elmfall is suggested. |
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| Keywords: | Pollarding Dutch elm disease parkelm elmfall Neolithic Ceratocystis ulmi Scolytus garden management |
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