It is prevalent in most North American species, although sycamore and flowering dogwood are particular concerns.
Anthracnose
Crabapples get apple scab early in the season. Different crabapple varieties are more resistant.
Apple scab
Roses like hawthorn and crabapple often get cedar rusts. Like apple scab, some cultivars and species are more susceptible.
Cedar rust
Austrian and other pines often get diplodia. The disease starts at the tree base and spreads. After expanding, candles and needles die from infection.
Diplodia tip blight
Dothistroma needle blight, a fungal disease, prematurely defoliates mature trees and stunts and kills young ones.
Dothistroma needle blight of pine
Florida and Texas palms suffer from lethal yellowing. Most natural palms are unaffected by it, however Canary Island date palm, coconut palm, and some are.
Lethal yellow of palm
Systemic fungus oak wilt kills trees. More than 20 oak species in Minnesota, Pennsylvania, South Carolina, Texas, and New York have the disease.
Oak Wilt
Some fungal infections that grow superficially on plants produce white mycelia and spores that cause powdery mildew.
Powdery mildew
Mostly found in the South, photinia leaf spot defoliates red tip photinia, Indian hawthorn, loquat, and several pear varieties.
Photinia Leaf Spot
Walnuts get thousand canker. It's mostly found in the West, but Tennessee black walnuts were infected last summer.