(phytopathology) A devastating disease of potatoes caused by the oomycete Phytophthora infestans.

(phytopathology) a blight afflicting the seed heads or inflorescences of cereal crops

(phytopathology) An infection of tea plants, caused by the fungus Exobasidium vexans, characterized by blister-like lesions on the leaves.

plural of urban blight

(urban studies) Urban decay consisting of the deterioration of part of a town or city due to ageing, neglect, and lack of financial support for maintenance.

(phytopathology) A bacterial plant disease, caused by Erwinia amylovora, that affects apples, pears and some other members of the Rosaceae family.

plural of fire blight

urban blight caused by negative environmental effects

(phytopathology) A bacterial disease of bean plants, caused by Pseudomonas syringae pv. phaseolicola.

(phytopathology) A disease of tomato and potato plants caused by the fungus Alternaria solani, producing distinctive bullseye-patterned leaf spots, stem lesions, fruit rot on tomato and tuber blight on potato.