Timely Topics - Disease

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Image of anthracnose on a sycamore leaf
Anthracnose on shade trees
Images of leaves from an apple tree with a case of apple scab
Apple Scab
An ash tree canopy with ash decline.
Ash Decline
Shot hole symptoms caused by a bacterial pathogen in apricot leaves
Bacterial Spot on Stonefruit Trees
A stonefruit tree with a case of black knot, showing long black galls on its branch.
Black Knot
Blossom end rot on tomato, with a brown leathery patch on the bottom of the fruit.
Blossom End Rot
Leaf symptoms of necrosis (death) of the tissue along the veins.
Bur Oak Blight
Gymnosporangium juniperi-virginianae gall on cedar,Orange tendrils protrude from cedar foliage
Cedar-Apple Rust
Image of hawthorn rust on the top of a leaf
Cedar-Hawthorn Rust
Image of a Euonymus with a case of crown gall
Crown Gall
symptoms (top) signs (bottom) of Cucurbit anthracnose
Cucurbit Anthracnose
Geranium leaves showing wilting and V-shaped lesions from infection by Xanthomonas campestris pv. pelargonii, cause of bacterial blight.
Cucurbit Bacterial Wilt
Image of a spruce tree with Cytospora canker
Cytospora Canker
Damping off in snapdragons Ron Jones, North Carolina State University, Bugwood.org
Damping Off
Image of black dots caused by the Sphaeropsis on a pine cone
Diplodia Tip Blight and Canker
Image of Dothistroma on the needles of an Austrian Pine
Dothistroma Needle Blight
Image of downy leaf spot
Downy Leaf Spot
Image of an elm tree with Dutch Elm Disease
Dutch Elm Disease
Image of dead grass rings resulting from fairy ring mushrooms
Fairy Rings
Image of fire blight
Fire Blight
Image of Foliar Nematodes
Foliar Nematodes
Image of raspberries with a case of gray mold
Gray mold