<i>Colletotrichum acutatum</i> Found on Apple Buds in Norway

Abstract

Healthy appearing buds of five apple cultivars from 2 experimental and 9 commercial orchards were collected and incubated in saturated air at 20°C in early spring (prior to bud break) over three years. Colletotrichum acutatum sporulated on 0 to 7% (mean 1.3%) of the buds from both commercial and experimental orchards. Infected apple buds are suggested as a potential source of inoculum in spring. Accepted for publication 5 February 2007. Published 22 May 2007.