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* Leaf blight of the grasses e.g. ''[[Ascochyta]]'' species<ref>{{cite web|last1=Tisserat|first1=N.|title=Ascochyta Leaf Blight of Turf|url=https://extension.colostate.edu/topic-areas/yard-garden/ascochyta-leaf-blight-of-turf-2-901/|website=Colorado State University|access-date=11 September 2019}}</ref> and ''[[Alternaria triticina]]'' that causes blight in wheat<ref>{{cite web|title=Alternaria triticina (leaf blight of wheat)|url=https://www.cabi.org/isc/datasheet/4534|website=www.cabi.org|access-date=11 September 2019|language=en|date=27 September 2018}}</ref> | * Leaf blight of the grasses e.g. ''[[Ascochyta]]'' species<ref>{{cite web|last1=Tisserat|first1=N.|title=Ascochyta Leaf Blight of Turf|url=https://extension.colostate.edu/topic-areas/yard-garden/ascochyta-leaf-blight-of-turf-2-901/|website=Colorado State University|access-date=11 September 2019}}</ref> and ''[[Alternaria triticina]]'' that causes blight in wheat<ref>{{cite web|title=Alternaria triticina (leaf blight of wheat)|url=https://www.cabi.org/isc/datasheet/4534|website=www.cabi.org|access-date=11 September 2019|language=en|date=27 September 2018}}</ref> | ||
* [[Bur oak blight]], caused by the fungal pathogen ''Tubakia iowensis''. | * [[Bur oak blight]], caused by the fungal pathogen ''Tubakia iowensis''. | ||
* South American leaf blight, caused by the [[Ascomycota|ascomycete]] ''[[Pseudocercospora]] [[Pseudocercospora ulei|ulei]]'',<ref name="Guyot-Guen-2018">{{cite journal|last1=Guyot|first1=Jean|last2=Le Guen|first2=Vincent|title=A Review of a Century of Studies on South American Leaf Blight of the Rubber Tree|journal=[[Plant Disease (journal)|Plant Disease]]|publisher=[[American Phytopathological Society]]|volume=102|issue=6|year=2018|issn=0191-2917|doi=10.1094/pdis-04-17-0592-fe|pages=1052–1065|pmid=30673445|doi-access=free }}</ref><ref name="EPPO-GD">{{cite web|title=''Pseudocercospora ulei'' (MICCUL){{bracket|Overview}}|website=Global Database|publisher=EPPO ([[European and Mediterranean Plant Protection Organization]])|date=2002-04-09|url= | * South American leaf blight, caused by the [[Ascomycota|ascomycete]] ''[[Pseudocercospora]] [[Pseudocercospora ulei|ulei]]'',<ref name="Guyot-Guen-2018">{{cite journal|last1=Guyot|first1=Jean|last2=Le Guen|first2=Vincent|title=A Review of a Century of Studies on South American Leaf Blight of the Rubber Tree|journal=[[Plant Disease (journal)|Plant Disease]]|publisher=[[American Phytopathological Society]]|volume=102|issue=6|year=2018|issn=0191-2917|doi=10.1094/pdis-04-17-0592-fe|pages=1052–1065|pmid=30673445|doi-access=free }}</ref><ref name="EPPO-GD">{{cite web|title=''Pseudocercospora ulei'' (MICCUL){{bracket|Overview}}|website=Global Database|publisher=EPPO ([[European and Mediterranean Plant Protection Organization]])|date=2002-04-09|url=https://gd.eppo.int/taxon/MICCUL|access-date=2021-08-28}}</ref><ref>[https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0104750#pone-0104750-g006 Erasing the Past: A New Identity for the Damoclean Pathogen Causing South American Leaf Blight of Rubber]</ref> also called ''Microcyclus ulei'',<ref>[http://www.plantwise.org/knowledgebank/datasheet.aspx?dsid=33893 South American Leaf Blight of rubber (''Microcyclus ulei'')], plantwise.org</ref> ended the cultivation of the rubber tree (''[[Hevea brasiliensis]]'') in South America.<ref name="Guyot-Guen-2018"/> | ||
On leaf tissue, symptoms of blight are the initial appearance of lesions which rapidly engulf surrounding tissue. However, [[leaf spot]]s may, in advanced stages, expand to kill entire areas of leaf tissue and thus exhibit blight symptoms. | On leaf tissue, symptoms of blight are the initial appearance of lesions which rapidly engulf surrounding tissue. However, [[leaf spot]]s may, in advanced stages, expand to kill entire areas of leaf tissue and thus exhibit blight symptoms. | ||
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*Erskine JM. 1973. Characteristics of Erwinia amylovora bacteriophage and its possible role in the epidemiology of fire blight. Canadian Journal of Microbiology; 19(7):837–845. | *Erskine JM. 1973. Characteristics of Erwinia amylovora bacteriophage and its possible role in the epidemiology of fire blight. Canadian Journal of Microbiology; 19(7):837–845. | ||
*Johnson KB, Stockwell VO. 1998. MANAGEMENT OF FIRE BLIGHT: A Case Study in Microbial Ecology. Annual Review of Phytopathology 36:227–248. | *Johnson KB, Stockwell VO. 1998. MANAGEMENT OF FIRE BLIGHT: A Case Study in Microbial Ecology. Annual Review of Phytopathology 36:227–248. | ||
*M. N. Schroth, S. V. Thomson, D. C. Hildebrand, W. J. Moller. 1974. Epidemiology and Control of Fire Blight. Annual Review of Phytopathology, 12:1, | *M. N. Schroth, S. V. Thomson, D. C. Hildebrand, W. J. Moller. 1974. Epidemiology and Control of Fire Blight. Annual Review of Phytopathology, 12:1, 389–412. | ||
*Mcmanus PS. 1994. Role of Wind-Driven Rain, Aerosols, and Contaminated Budwood in Incidence and Spatial Pattern of Fire Blight in an Apple Nursery. Plant Disease 78:1059. | *Mcmanus PS. 1994. Role of Wind-Driven Rain, Aerosols, and Contaminated Budwood in Incidence and Spatial Pattern of Fire Blight in an Apple Nursery. Plant Disease 78:1059. | ||
*Puławska J, Sobiczewski P. 2011. Phenotypic and genetic diversity of Erwinia amylovora: the causal agent of fire blight. Trees 26:3–12. | *Puławska J, Sobiczewski P. 2011. Phenotypic and genetic diversity of Erwinia amylovora: the causal agent of fire blight. Trees 26:3–12. | ||
*Rico A, Ortiz-Barredo A, Ritter E, Murillo J. 2004. Genetic characterization of Erwinia amylovora strains by amplified fragment length polymorphism. Journal of Applied Microbiology; 96(2):302–310. | *Rico A, Ortiz-Barredo A, Ritter E, Murillo J. 2004. Genetic characterization of Erwinia amylovora strains by amplified fragment length polymorphism. Journal of Applied Microbiology; 96(2):302–310. | ||
*Ritchie DF. 1977. Isolation of Erwinia amylovora Bacteriophage from Aerial Parts of Apple Trees. Phytopathology 77:101. | *Ritchie DF. 1977. Isolation of Erwinia amylovora Bacteriophage from Aerial Parts of Apple Trees. Phytopathology 77:101. | ||
*Steiner PW. 1996. What We | *Steiner PW. 1996. What We Don't Know About Fire Blight. Acta Horticulture; (411):3–6. | ||
*Thomas TM. 1992. Severity of Fire Blight on Apple Cultivars and Strains in Michigan. Plant Disease 76:1049. | *Thomas TM. 1992. Severity of Fire Blight on Apple Cultivars and Strains in Michigan. Plant Disease 76:1049. | ||
*Vanneste JL. What is fire blight? Who is Erwinia amylovora? How to control it? Fire blight: the disease and its causative agent, Erwinia amylovora.:1–6. | *Vanneste JL. What is fire blight? Who is Erwinia amylovora? How to control it? Fire blight: the disease and its causative agent, Erwinia amylovora.:1–6. | ||
Latest revision as of 21:29, 20 October 2025
Template:Short description Script error: No such module "about". Script error: No such module "redirect hatnote". Blight is a specific symptom affecting plants in response to infection by a pathogenic organism.
Description
Blight is 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:Script error: No such module "Unsubst".
- 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) Shoemaker, incited a severe loss of corn in the United States in 1970.[2]
- Chestnut blight, caused by the fungus Cryphonectria parasitica (Murrill) Barr, has nearly completely eradicated mature American chestnuts in North America.
- Citrus blight, caused by an unknown agent, infects all citrus scions.
- Fire blight of pome fruits, caused 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.[3]
- Bacterial seedling blight of rice (Oryza sativa), caused by pathogen Burkholderia plantarii[4]
- Early blight of potato and tomato, caused by species of the ubiquitous fungal genus Alternaria
- Leaf blight of the grasses e.g. Ascochyta species[5] and Alternaria triticina that causes blight in wheat[6]
- Bur oak blight, caused by the fungal pathogen Tubakia iowensis.
- South American leaf blight, caused by the ascomycete Pseudocercospora ulei,[7][8][9] also called Microcyclus ulei,[10] ended the cultivation of the rubber tree (Hevea brasiliensis) in South America.[7]
On leaf tissue, symptoms of blight are the initial appearance of lesions which rapidly engulf surrounding tissue. However, leaf spots may, in advanced stages, expand to kill entire areas of leaf tissue and thus exhibit blight symptoms.
Blights are often named after their causative agent. For example, Colletotrichum blight is named after the fungus Colletotrichum capsici, and Phytophthora blight is named after the water mold Phytophthora parasitica.[11]
When blights have been particularly vast and consequential in their effects, they have become named historical events, such as the 19th Century Potato Blight, also known locally from its primary consequence as the Great famine, the Great Famine of Ireland, and Highland Potato Famine, and the near extinction of the Bermuda cedar during the 1940s and 1950s in the event described as The Blight or The Cedar Blight.[12][13][14][15][16][17][18]
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
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Three dead Bermuda cedars in 2019
_at_Prospect_Camp,_Bermuda_in_2019.jpg){kind=link}
References
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- ↑ Agrios, George N. 2005. Plant Pathology. 5th ed, Burlington, MA: Elsevier Academic Press.
- ↑ Partridge, J.E. "Southern Corn Leaf Blight." 2003. 8 August 2006. Script error: No such module "citation/CS1".
- ↑ 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.
- ↑ Script error: No such module "Citation/CS1".
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- ↑ Erasing the Past: A New Identity for the Damoclean Pathogen Causing South American Leaf Blight of Rubber
- ↑ South American Leaf Blight of rubber (Microcyclus ulei), plantwise.org
- ↑ Script error: No such module "citation/CS1".
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External links
Template:Sister project Template:Sister project
- Berg A. 1926. Tomato Late Blight and its Relation to Late Blight of Potato.
- Bonn WG, Zwet TVD. Distribution and economic importance of fire blight. Fire blight: the disease and its causative agent, Erwinia amylovora.:37–53.
- Erskine JM. 1973. Characteristics of Erwinia amylovora bacteriophage and its possible role in the epidemiology of fire blight. Canadian Journal of Microbiology; 19(7):837–845.
- Johnson KB, Stockwell VO. 1998. MANAGEMENT OF FIRE BLIGHT: A Case Study in Microbial Ecology. Annual Review of Phytopathology 36:227–248.
- M. N. Schroth, S. V. Thomson, D. C. Hildebrand, W. J. Moller. 1974. Epidemiology and Control of Fire Blight. Annual Review of Phytopathology, 12:1, 389–412.
- Mcmanus PS. 1994. Role of Wind-Driven Rain, Aerosols, and Contaminated Budwood in Incidence and Spatial Pattern of Fire Blight in an Apple Nursery. Plant Disease 78:1059.
- Puławska J, Sobiczewski P. 2011. Phenotypic and genetic diversity of Erwinia amylovora: the causal agent of fire blight. Trees 26:3–12.
- Rico A, Ortiz-Barredo A, Ritter E, Murillo J. 2004. Genetic characterization of Erwinia amylovora strains by amplified fragment length polymorphism. Journal of Applied Microbiology; 96(2):302–310.
- Ritchie DF. 1977. Isolation of Erwinia amylovora Bacteriophage from Aerial Parts of Apple Trees. Phytopathology 77:101.
- Steiner PW. 1996. What We Don't Know About Fire Blight. Acta Horticulture; (411):3–6.
- Thomas TM. 1992. Severity of Fire Blight on Apple Cultivars and Strains in Michigan. Plant Disease 76:1049.
- Vanneste JL. What is fire blight? Who is Erwinia amylovora? How to control it? Fire blight: the disease and its causative agent, Erwinia amylovora.:1–6.