Fungal disease affecting apple trees.

Forming a crust, wound heals.

Parasitic skin disease in sheep.

A disease of potato tubers, caused by the cercozoan Spongospora subterranea f. sp. subterranea, and characterized by small lesions progressing to raised pustules containing a powdery mass.

Fungal disease affecting wheat heads.

Potato skin disease causing roughness.

Mites that cause scaly skin.

Peach scab, also known as peach freckles, is a disease of stone fruits caused by the fungi Cladosporium carpophilum.

Bacteria causing corky lesions on potatoes.

the most economically significant disease of pecan trees (Carya illinoinensis) in the southeastern United States.

Fungal disease affecting tree tops.

Resembling crust formed over wounds.