Cercospora sorghi
cercosporiosis
Cercospora sorghi var. maydis
Worldwide
Southeast and Midwest states
2025-01-03
fungus
-
Main: poaceae speices: sorghum, Johnson grass, Sudan grass, corn
CERCSG
Cercospora sorghi is usually considered a minor disease, except where susceptible cultivars are grown Areas that are wet or humid and warm promote disease development on infected leaf tissue and provide abundant production of sports which are spread by wind and rain.
3 Known Hosts
Sorghum bicolor
sorghum
uncertain
CERCSG-1, CERCSG-4, CERCSG-6, CERCSG-9, CERCSG-10, CERCSG-11
References indicate seed may be a pathway only show possible seed contamination but not seed transmission (CERCSG-6) or speculate that seed may be a pathway (CERCSG-4, CERCSG-7). Other sources do not consider seed a pathway for this pathogen.
Yes
Blotter incubation
Since seed as a pathway has not been proven, this test has not been validated or standardized.
CERCSG-6
Chemical, cultural
Seed treatments such as thiram, have been described as a general protectant (not pathogen specific). Also common cultural practices for good seed quality should be practices, such as removal of alternative hosts, crop rotation, etc.
CABI CPC
2025-01-03 11:08:13
Cercospora sorghi In: Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
Grey Leaf Spot or Cercospora Leaf Spot. 2017. Crop Gene Bank www.cropgenebank.sgrp.cgiar.org
Girish AG, Singh SD, Chakrabarty SK, Prasada Rao RDVJ, Surender A, Varaprasad KS, Bramel PJ. 2001. Seed microflora of five ICRISAT mandate crops. Seed Science and Technology Journal : 29: 429-443
Okori, P., Rubaihayo, P. R., Ekwamu, A., Fahleson, J., & Dixelius, C. (2004). Genetic characterization of Cercospora sorghi from cultivated and wild sorghum and its relationship to other Cercospora fungi. Phytopathology, 94(7), 743-750.
Navi, S. S., Bandyopadhyay, R., Tonapi, V. A., Rao, T. G. N., Indira, S., Reddy, R. K., Tooley, P. W., Thomas, D., 2007. Prevalence of major foliar and panicle diseases of Sorghum (Sorghum bicolor [L.] Moench) in the Deccan plateau of India.Archives of Phytopathology and Plant Protection, 40(1) 19-35.
Ngugi, H. K., King, S. B., Abayo, G. O., Reddy, Y. V. R., 2002. Prevalence, incidence, and severity of sorghum diseases in Western Kenya.Plant Disease, 86(1) 65-70.
Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
Sorghum sudanense
sudan grass
No
CABI CPC, RICH ISTA
Seed is not known to be a pathway for this pathogen in this host.
2025-01-03 11:08:32
Zea mays
corn
No
CABI CPC, RICH ISTA, McGEE
Seed is not known to be a pathway for this pathogen in this host.
2025-01-03 11:10:00
Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
Richardson, MJ. 1990. An Annotated List of Seedborne Diseases. International Seed Testing Association, Zurich Switzerland.
McGee, DC. 1988, Maize Diseases; A reference source for Seed Technoligists. American Phytopathological Society, St. Paul, MN USA
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