Disease caused by acervuli-forming fungi (order Melanconzales) and characterized by sunken lesions and necrosis.
Many diseases called anthracnose produce similar necrotic lesions and shoot diebacks as seen with sycamore anthracnose. There are some diseases called anthrancose that produce cankers (apple anthracnose) or fruit rots (blueberry ripe rot).
Any sudden, severe, and extensive spotting, discoloration, or destruction of leaves, flowers, stems, or entire plants, usually attacking young, growing tissues. (In disease names, often coupled with the name of the affected part of the host; e.g., leaf blight, blossom blight, shoot blight).
Tomato late blight will blight the leaves as seen here.
Death of cambium tissue and loss and/or malformation of bark; or by the formation of sharply delineated, dry, necrotic, localized lesions on the stem; the term canker also may be used to refer to the lesion itself, particularly in woody plants.
Cankers on side of this 'Golden Delicious' apple branch show how the bark becomes detached.
Treatment of disease by chemicals (chemotherapeutants) working internally. Chemical agent has toxic effect directly or indirectly on the pathogens without injury to the host plant.
A curl-like tuft; a tendril-like mass or "spore horn" of forced-out spores.
When wet, pycnidia of a fungus may ooze spores out of a small hole in the top and the spores may form a cirrus (it is kind of like a Play-dough fun factory).
