Blight

Blight is a specific symptom affecting plants in response to infection by a pathogenic organism.

Blight is a rapid and complete chlorosis, browning, then death of plant tissues such as leaves, branches, twigs, or floral organs.

[1] Accordingly, many diseases that primarily exhibit this symptom are called blights.

Several notable examples are:[citation needed] On leaf tissue, symptoms of blight are the initial appearance of lesions which rapidly engulf surrounding tissue.

For example, Colletotrichum blight is named after the fungus Colletotrichum capsici, and Phytophthora blight is named after the water mold Phytophthora parasitica.