Blight (disambiguation)

Blight commonly refers to:
 * Potato blight:
 * Late blight, caused by Phytophthora infestans an oomycete or water mold that causes the serious potato disease
 * Early blight, caused by Alternaria solani a fungal pathogen, producing a disease in tomato and potato plants

Blight may also refer to:


 * Alternaria leaf blight, a condition of cucurbits caused by the ascomycete fungus Alternaria cucumerina.
 * Black potato blight, caused by Phoma andigena a fungal pathogen of potatoes only found at altitude in Peru.
 * Blossom blight or sclerotinia rot, a genus of fungi with numerous plant pathogenic taxa.
 * Gummy stem blight, caused by Didymella bryoniae a fungal plant pathogen, which attacks mature plants. A sunken brown canker appears at the base of the stem.
 * Halo blight, caused by Pseudomonas amygdali pv. phaseolicola a bacterial blight disease in legumes.
 * Pantoea bacterial blight, better known as bacterial brown spot, caused by the Gram-negative bacteria Pantoea ananatis
 * Phoma blight, caused by one of the Phoma species of about 140 taxa of plant pathogenic species including P. exigua var. foveata (Gangrene) and P. terrestris (Pink root of onion).
 * Phomopsis blight, caused by Phomopsis a genus of canker-producing plant pathogens.
 * Rhizoctonia blight, caused by Rhizoctonia solani a plant pathogenic fungus with a wide host range and worldwide distribution.