fire blight

noun

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

Similar
pear blight

Meanings

nounfire blight (countable and uncountable, plural fire blights)

plural fire blights · alternative fire-blight · alternative fireblight

  1. countableuncountablebiologyA bacterial plant disease, caused by Erwinia amylovora, that affects apples, pears and some other members of the Rosaceae family.

    Pear growers also often reported scab and fire blights as the most damaging diseases.

    1949, U.S. Department of Agriculture, Agriculture Information Bulletin, page xv
    2 more examples

    This paper reports on the transformation of apple aimed on an improvement of resistance to fire blight. Fire blight is a serious disease, caused by the bacterium Erwinia amylovora, affecting apple, pear and other members of the Rosaceous family.

    2003, Viola Hanke, Klaus Geider, Klaus Richter, “Transgenic Apple Plants Expressing EPS-depolymerase: Evaluation of resistance to the phytopathogenic bacterium Erwinia amylovora”, in Indra K. Vasil, editor, Plant Biotechnology 2002 and Beyond: Proceedings of the 10th IAPTC&B Congress, page 153

    A very serious bacterial disease in North America and Europe is fire blight, which can be most destructive to pears. In the past, fire blight led to big losses in the USA, destroying established pear orchards in one season.

    2008, A. T. G. Elzebroek, Guide to Cultivated Plants, page 82

Synonyms & antonyms

nouna disease blackening the leaves of pear and apple trees

Similar
pear blight
Broader
leaf blight
Also see

Synonym sets from Open English WordNet, CC BY 4.0.

Translations

Catalan foc bacterià
  • foc bacteriàbacterial plant disease
Dutch bacterievuur
  • bacterievuurbacterial plant disease
Finnish tulipolte
  • tulipoltebacterial plant disease
French feu bactérien
  • feu bactérienbacterial plant disease
German Feuerbrand
  • Feuerbrandbacterial plant disease
Icelandic perubrandur
  • perubrandurbacterial plant disease
Polish zaraza ogniowa
  • zaraza ogniowabacterial plant disease
Russian бактериа́льный ожо́г
  • бактериа́льный ожо́г (bakteriálʹnyj ožóg)bacterial plant disease
Cite this entry
APA

fire blight. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/fire%20blight

MLA

“fire blight.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/fire%20blight. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “fire blight,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/fire%20blight.

Source: fire blight on Wiktionary, CC BY-SA 4.0.