Blight
111fire blight — Plant Pathol. a disease of pears, apples, quinces, etc., characterized by blossom, twig, and fruit blight and stem cankers, caused by a bacterium, Erwinia amylovora. [1740 50; from the burnt look of the foliage] * * * ▪ disease plant disease… …
112leaf blight — Plant Pathol. 1. a symptom or phase of many diseases of plants, characterized by necrotic spots or streaks on the leaves, accompanied by seed rot and seedling blight. 2. any disease so characterized. [1840 50] * * * …
113northern corn-leaf blight — /kawrn leef /. See northern leaf blight. * * * …
114northern leaf blight — Plant Pathol. a disease of corn caused by the fungus Exsherohilum turcicum, characterized by elongate tan gray elliptical spots with subsequent blighting and necrosis of leaves. Also called northern corn leaf blight. * * * …
115twig blight — Plant Pathol. blight affecting the twigs of a plant. [1885 90, Amer.] * * * …
116head blight — noun a blight afflicting the seed heads or inflorescences of cereal crops …
117finger-blight — the reduction of a crop due to stealing An occurrence once common in apple orchards, blight being a natural phenomenon, while scrumping by children is not …
118planning blight — Difficulty in selling or developing a site, building, etc. , because it is affected by a government or local authority development plan. Planning blight may be ended by a compulsory purchase by the government or local authority, but it may… …
119chestnut blight — chest′nut blight n. ppa a disease of chestnut trees caused by a fungus, Endothia parasitica, characterized by bark lesions that eventually girdle the trunk and kill the tree • Etymology: 1905–10, amer …
120fire blight — fire′ blight n. ppa a disease of fruit trees, esp. of pears and apples, that blackens the foliage and is caused by a bacterium Erwinia amylovora[/ex] …
