A Technical Report from The Bartlett Tree Research Laboratories

Anthracnose is a term applied to a group of foliar diseases which affect many hardwood tree species including London Plane and Willow. Anthracnose of London Plane and willow, caused by the fungi Marssonina salicicola and Apiognomonia veneta are common conditions across the UK. These diseases are most prevalent and destructive in early spring when cool, moist weather conditions favour their development. Infection results in leaf and shoot blight, defoliation, and twig dieback. Several consecutive years of defoliation will severely weaken trees, predisposing them to invasion by insect pests and secondary disease causing organisms, such as canker and root decay fungi.

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