blight

(blīt)

1. 1. Any of numerous plant diseases resulting in sudden conspicuous wilting and dying of affected parts, especially young, growing tissues.
   2. The condition or causative agent, such as a bacterium, fungus, or virus, that results in blight.
2. An extremely adverse environmental condition, such as air pollution.
3. Something that impairs growth, withers hopes and ambitions, or impedes progress and prosperity.

1. To cause (a plant, for example) to undergo blight.
2. To have a deleterious effect on; ruin. See synonyms at blast.

[Origin unknown.]

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For more information on blight, visit Britannica.com.

verb

To spoil or destroy: blast, dash, nip. See help/harm/harmless.

Definition: disease; plague
Antonyms: blessing, boon, bounty, health, prosperity

v

Definition: ruin, destroy
Antonyms: aid, bless, guard, help, prosper, protect

In plants, a fungus disease causing them to wither.

Tutor's tip: The "blight" (plant disease) affected the "blite" (weedy plant).

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• Violent Actions - blight: ruin; cause to wither or decay

This article is about plant diseases. For other senses of this word, see blight (disambiguation).

Look up blight in Wiktionary, the free 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.^[1] Accordingly, many diseases that primarily exhibit this symptom are called blights. Several notable examples are:

• Late blight of potato, caused by the water mold Phytophthora infestans (Mont.) de Bary, the disease which led to the Great Irish Famine
• Southern corn leaf blight, caused by the fungus Cochliobolus heterostrophus (Drechs.) Drechs, anamorph Bipolaris maydis (Nisikado & Miyake) by the bacterium Erwinia amylovora (Burrill) Winslow et al., is the most severe disease of pear and also is found in apple and raspberry, among others.
• Bacterial leaf blight of rice, caused by the bacterium Xanthomonas oryzae (Uyeda & Ishiyama) Dowson.^[2]
• Early blight of potato and tomato, caused by species of the ubiquitous fungal genus Alternaria
• Leaf blight of the grasses

On leaf tissue, symptoms of blight are the initial appearance of lesions which rapidly engulf surrounding tissue. However, leaf spot may, in advanced stages, expand to kill entire areas of leaf tissue and thus exhibit blight symptoms.

Gallery

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  Chestnut blight

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  Brown Felt Blight

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  potato late blight

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  Fire blight appletree fruit

References

1. ^ Agrios, George N. Plant Pathology. 5th ed. Burlington, MA: Elsevier Academic Press, 2005.
2. ^ Oda, M., Sekizawa, Y., and Watanabe, T. 1966. "Phenazines as Disinfectants Against Bacterial Leaf Blight of the Rice Plant." Applied Microbiology 14(3):365-367.

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Dansk (Danish)
n. - plantesygdom
v. tr. - ramme med plantesygdom, ødelægge
v. intr. - blive ødelagt

Nederlands (Dutch)
bederven, vergallen, verpesten, afzichtelijkheid, aantasten, verzengen, vernietigen, bederf, ziekte, vloek

Français (French)
n. - rouille, nielle, mildiou, cloque (des arbres fruitiers)
v. tr. - nieller (du blé, etc), saccager, (fig) anéantir, détruire, ruiner (des espoirs), gâcher, briser (une carrière)
v. intr. - être attaqué (une récolte), (fig) être brisé (un mariage), être compromis (des chances), s'envoler (des espoirs), se gâcher (une enfance)

Deutsch (German)
n. - Fäule, Laus, etwas Zerstörendes, Schandfleck
v. - verderben, trüben, befallen

Ελληνική (Greek)
v. - κατακαίω, ξεραίνω, ματαιώνω
n. - φυτασθένεια (καπνιά, ερυσίβη, στάχτη), (εντομ.) αφίδα, (μτφ.) συμφορά, δεινό, πληγή

Italiano (Italian)
rovinare

Português (Portuguese)
v. - fazer secar (planta), arruinar
n. - ferrugem (f) (Bot.), inseto (m) que causa a doença da ferrugem (Bot.) (Zool.)

Русский (Russian)
погубить, испортить, болезнь растений, деградация района

Español (Spanish)
n. - plaga, infortunio
v. tr. - estropear, arruinar, malograr
v. intr. - estropearse, arruinarse, malograrse

Svenska (Swedish)
v. - skada, fördärva
n. - brand, rost, sot, pest, fördärv

中文（简体）(Chinese (Simplified))
枯萎病, 打击, 不良影响, 使枯萎, 破坏, 摧残, 使颓丧, 患枯萎病, 颓丧, 枯萎

中文（繁體）(Chinese (Traditional))
n. - 枯萎病, 打擊, 不良影響
v. tr. - 使枯萎, 破壞, 摧殘, 使頹喪
v. intr. - 患枯萎病, 頹喪, 枯萎

한국어 (Korean)
n. - 충해, 오염된 대기, 파멸의 원인
v. tr. - ~을 말라 죽게 하다, ~을 망쳐 놓다
v. intr. - 말라죽다, 시들다

日本語 (Japanese)
n. - 胴枯れ病, その病因, 傷付けるもの, くじくもの, 荒廃, 虫害
v. - 枯らす, くじく, 枯れる, だめにする

العربيه (Arabic)
‏(فعل) أفسد, ابتلى, نكب (الاسم) آفه, عاهه‏

עברית (Hebrew)
n. - ‮שידפון, מחלת דגנים, חרק או צמח טפילי הגורם לשידפון, איזור עירוני מוזנח, כוח לא-מוכר מזיק או הרסני‬
v. tr. - ‮שדף, הרס, פגע, קילקל‬
v. intr. - ‮לקה, כמש‬

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