Leaf Diseases

Oak Anthracnose

Ash Anthracnose

Dogwood anthracnose

Aspen Twig Blight

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

Bur Oak Blight

Tar Spots - Native and Introduced - See links at the top of webpage for more information and photos

Information on the invasive tar spot from Europe in Minnesota


Laboratory Review - Information and photographs for the lab review will be posted after the class has met.


Powdery mildew

Tar spot 


Other leaf diseases: Apple scab, Aspen twig blight, sooty mold