Anthracnose Technical Report

A Technical Report from The Bartlett Tree Research Laboratories

Anthracnose is a term applied to a group of foliage diseases that affect many deciduous tree and shrub species throughout North America. Anthracnose is most prevalent and destructive in early spring when cool, moist weather conditions favor disease development. On highly susceptible species such as sycamores, oaks (especially white oaks), maples, ash and walnut, anthracnose may result in leaf and shoot blight, defoliation and twig dieback.