Halo blight

Halo blight

"Wikipedia:Categories for discussion/Log/2007 May 16Halo Blight is a bacterial blight disease caused by, "Pseudomonas amygdali pv. phaseolicola", in legumes. It causes small brown spots on the leafs with a light coloured edge.

Cause

The bacteria "Pseudomonas amygdali pv. phaseolicola", which would be present on the bean before planting.

ymptoms

Small brown circles sunken into the leaf. Light yellow/green area around the spot the "halo".Yellowing of leaf and eventual death.

Propagation

Water droplets for example from rain or watering from above carry the spores.

Cure

There is no cure and crop destruction is the usual procedure.


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Look at other dictionaries:

  • halo blight — noun 1. a blight affecting the leaves of oats and other grasses • Hypernyms: ↑blight 2. a blight of bean plants • Syn: ↑halo spot, ↑bean blight • Hypernyms: ↑blight * * * …   Useful english dictionary

  • halo blight — a disease of plants, characterized by small, necrotic leaf or fruit lesions surrounded by a yellowish, halolike band, caused by any of several bacteria of the genus Pseudomonas. [1915 20] * * * …   Universalium

  • halo spot — noun a blight of bean plants • Syn: ↑halo blight, ↑bean blight • Hypernyms: ↑blight * * * noun : halo blight 1 …   Useful english dictionary

  • bean blight — noun a blight of bean plants • Syn: ↑halo blight, ↑halo spot • Hypernyms: ↑blight * * * noun : a disease caused by a bacterium (Xanthomonas phaseoli) distinguished from bean anthracnose by more irregular diffuse extended and water soaked lesions… …   Useful english dictionary

  • bacterial blight — noun : a blight of plants caused by bacteria: as a. : halo blight b. : angular leaf spot c. : celery blight …   Useful english dictionary

  • Plant disease symptoms — ▪ Table Plant disease symptoms description and causes examples prenecrotic symptom expression that precedes the death of cells or the disintegration of tissues water soaking a water soaked, translucent condition of tissues caused by water moving… …   Universalium

  • List of oats diseases — This article is a list of diseases of oats (Avena sativa). Contents 1 Bacterial diseases 2 Fungal diseases 3 Miscellaneous diseases or disorders 4 …   Wikipedia

  • Pseudomonas coronafaciens — Taxobox color = lightgrey name = Pseudomonas coronafaciens image width = 240px image caption = regnum = Bacteria phylum = Proteobacteria classis = Gamma Proteobacteria ordo = Pseudomonadales familia = Pseudomonadaceae genus = Pseudomonas species …   Wikipedia

  • ПЯТНИСТОСТЬ БАКТЕРИАЛЬНАЯ КОФЕЙНОГО ДЕРЕВА ОРЕОЛЬНАЯ — англ.bacterial leaf spot of coffee tree; halo blight of coffee tree; “mancha aureolada” of coffee tree нем.bakterielle Blattfleckenkrankheit, Kaffeebaum; “Mancha Aureolada”, Kaffeebaum франц.taches foliaires bactériennes du caféier (en… …   Фитопатологический словарь-справочник

  • БАКТЕРИОЗ ВОЛОСНЕЦА, КОЛОСНЯКА БУРЫЙ ПЯТНИСТЫЙ; ОЖОГ КРУГЛЫЙ ВОЛОСНЕЦА, КОЛОСНЯКА — англ.bacterial halo blight of Siberian wild rye; brown bacteriosis of Siberian wild rye нем.braune Fleckenbakteriose, sibirisches Haargras франц.bactériose de l élyme de Sibérie возбудитель:Pseudomonas coronafaciens (Elliott) Stapp …   Фитопатологический словарь-справочник

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