ArborSystems products provide proven protection against harmful tree diseases. Which ones? Anthracnose, Beech Decline, Chlorosis, Conifer Blight, Crabapple and other Leaf Diseases, Diploida Tip Blight, Dutch Elm Disease, Oak Wilt, Pine Wilt, Powdery Mildew, Pythium Disease, Rust, Stem and Canker Blight, Sudden Oak Death and many more. Always check the label which provides a list of diseases and complete directions for use. For more information, click here.