Birch Anthracnose
Four species of Ophiognomonia (O. alni-viridis, O. hiawathae, O. intermedia and O. michiganensis), Cryptocline betularum, Marssonina betulae, and Colletotrichum are known to occur on birch (Betula) in the United States (Sinclair and Lyon 2005, Walker et al. 2012). Based on