Biology:Colletotrichum orbiculare

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Short description: Species of fungus

Colletotrichum orbiculare
Colletotrichum orbiculare 1.jpg
Scientific classification edit
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Sordariomycetes
Order: Glomerellales
Family: Glomerellaceae
Genus: Colletotrichum
Species:
C. orbiculare
Binomial name
Colletotrichum orbiculare
(Berk. & Mont.) Arx, (1957)[1]
Synonyms

Colletotrichum lagenaria (Pass.) Ellis & Halst. [as 'lagenarium'], (1893)
Colletotrichum oligochaetum Cavara, (1889)
Cytospora orbicularis Berk., (1838)
Fusarium lagenaria Pass. [as 'lagenarium']
Gloeosporium lagenaria (Pass.) Sacc. & Roum. [as 'lagenarium'], (1880)
Gloeosporium orbiculare (Berk.) Sacc., (1884)
Glomerella cingulata var. orbiculare S.F. Jenkins & Winstead, (1962)
Glomerella lagenaria (Pass.) F. Stevens [as 'lagenarium'], (1931)
Glomerella lagenaria F. Stevens, (1931)
Myxosporium orbiculare (Berk.) Berk., (1860)
Sirogloea orbicularis (Berk.) Arx, (1957)

Colletotrichum orbiculare is a plant pathogen of melons and cucumber. It causes the disease anthracnose that can effect curcubits causing lesions on various parts of the plant. It can effect cucumbers, melon, squash, watermelon and pumpkin, especially when the weather is rainy, humid and warm. It can be transmitted by seed as well as soil and survive between crops. It is also spread by feeding cucumber beetles, splashing water, tools and workers. Efforts to control the fungus include the practice of rotating cucurbits out for a 2-year period, planting cultivars with resistance, burning infected crops and careful control of weeds. Chemical control measures are also available.[2]

Management

Partners of the CABI-led programme, Plantwise from the Ministry of Agriculture in Zambia have several recommendations for managing C. orbiculare, these include; using certified, disease-free seed and disease tolerant varieties where possible. They also recommend rotating melons with breaks of at least 2–3 seasons with cereals, legumes or brassicas, because the disease stays in the soil for a long time. They suggest destroying any volunteer crops by burying outside of fields and pruning plants to reduce humidity and increase airflow.[3]

Sources

Definition of Free Cultural Works logo notext.svg This article incorporates text from a free content work. Licensed under CC-BY-SA License statement: Anthracnose in watermelon, Mooya A.M Nzila, CABI. To learn how to add open license text to HandWiki articles, please see this how-to page. For information on reusing text from HandWiki, please see the terms of use.

References

  1. Sherriff, Christine; Whelan, Mitzi J.; Arnold, Gillian M.; Lafay, Jean-Francois; Brygoo, Yves; Bailey, John A. (1994). "Ribosomal DNA Sequence Analysis Reveals New Species Groupings in the Genus Colletotrichum". Experimental Mycology 18 (2): 121–138. doi:10.1006/emyc.1994.1014. ISSN 0147-5975. 
  2. "Cucurbits, Anthracnose". 2015-01-06. https://ag.umass.edu/vegetable/fact-sheets/cucurbits-anthracnose. 
  3. "Plantwise Knowledge Bank | Anthracnose in watermelon". https://www.plantwise.org/KnowledgeBank/pmdg/20177800699. 

Wikidata ☰ Q5147091 entry