Abstract
Colonization of freshly cut stumps of Fagus sylvatica, Betula pendula and Quercus robur by fungi other than basidiomycetes was followed for periods of up to 2 1/2 years. Chemical stump treatment, especially with 40% (w/v) ammonium sulphamate solution (AMS) strongly influenced the succession. Within 1–3 months of exposure the cut surface of AMS-treated stumps was extensively colonized, especially by Botrytis cinerea , whilst stumps treated with water as controls remained virtually uncolonized. Subsequently AMS-treated stumps became extensively colonized by a number of other fungi including Corynesarcoides,Pezizella sp. and Hypoxylon serpens (on beech only) whilst water-treated stumps were more often colonized by Xylaria hypoxylon . As decay became more advanced, which happened particularly rapidly and extensively with AMS-treated stumps, other fungi appeared. These included several Khinocladiella species, which occurred in narrow zones of dark relatively undeeayed wood between decay areas, and a Scytalidium sp. which was more generally distributed.
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