leaf 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] * * * … Universalium
northern corn-leaf blight — /kawrn leef /. See northern leaf blight. * * * … Universalium
northern 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. * * * … Universalium
northern corn-leaf blight — /kawrn leef /. See northern leaf blight … Useful english dictionary
northern 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 … Useful english dictionary
Blight — refers to a specific symptom affecting plants in response to infection by a pathogenic organism. It is simply a rapid and complete chlorosis, browning, then death of plant tissues such as leaves, branches, twigs, or floral organs. [Agrios, George … Wikipedia
strawberry leaf blight — noun see strawberry leaf spot … Useful english dictionary
leaf cast — noun a disease of conifers causing the needles to fall • Syn: ↑needle blight, ↑needle cast • Hypernyms: ↑leaf blight * * * noun : any of several diseases of conifers (as that caused by fungi of the order Hysteriales) producing a falling of the… … Useful english dictionary
Leaf rust (barley) — Leaf rust is a fungal disease of barley caused by Puccinia hordei . It is also known as brown rust and it is the most important rust disease on barley.cite book last = Mathre first = D.E. title = Compendium of barley diseases publisher = American … Wikipedia
Leaf spot — Leaf Spots are round blemishes found on the leaves of many species of plants, mostly caused by parasitic fungi or bacteria. A typical spot is zonal , meaning it has a definite edge and often has a darker border. When lots of spots are present,… … Wikipedia
