Cercospora on SourwoodPhoto by Bob Mulrooney, University of Delaware
Walnut AnthracnosePhoto from the University of Minnesota Yard and Garden Line News
Tar Spot on MaplePhoto by Steven Katovich, USDA Forest Service, Bugwood.org
Disease Hotline Issue 24
Cercospora on SourwoodWalnut Anthracnose Tar Spot on Maple