Apple Scab, Venturia inaequalis (scroll down to the section on apple scab)
A list of apple scab resistant cultivars for crab apples (scroll down the page for the list) and apples
Peach Leaf Curl, Taphrina deformans
Aspen and poplar leaf diseases
Tar Spots - Introduced into the US. Rhytisma acerinum
Tar Spots - Native to the US. Rhytisma americana and Rhytisma punctatum
Laboratory Review - Information and photographs for the lab review will be posted after the class has met.
Other leaf diseases: Black spot of elm, Apple scab, Aspen twig blight, Bur oak blight, Bronze leaf disease, Marssonina leaf spot, Septoria leaf spot, Sooty mold