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Microdochium sorghi (zonate leaf spot )
Microdochium sorghi
zonate leaf spot
Gloeocercospora sorghi, Ramulispora andropogonis, Titaeospora andropogonis
Africa: Benin, Burkina Faso, Central African Republic, Chad, Congo, Eritrea, Ethiopia, Gambia, Ghana, Kenya, Mali, Niger, NIgeria, Rwanda, Senegal, Somalia, Sudan, Tanazania, Togo, Uganda, Zambia, Zimbabwe'; Asia: China, India, Japan, Malaysia, North Korea, Philippines, Taiwan, Thailand; Europe: Russia; North America: Belize, El Salvador, Guatemala, Haiti, Mexico, Nicaragua, Panama, USA; Oceania: American Samoa, Australia, Samoa, Tonga; South America: Argentina, Brazil, Uruguay, Venezuela.
AL, FL, GA, KS, LA, MS, MO, NE, NM, NC, TX
2025-06-29
fungus
-
Main: Sorghum; Other: Poaceae family
GLOCSO
Microdochium sorghi is seedborne and soilborne, with confirmed transmission through infected seed and persistence in soil via sclerotia. It can rapidly infect seedlings, leading to reduced germination and seedling blight.
2 Known Hosts
Sorghum bicolor
sorghum
Yes
CABI CPC, GLOCSO-1, GLOCSO-2, GLOCSO-3, GLOCSO-4, GLOCSO-5, GLOCSO-6, GLOCSO-7, GLOCSO-8, GLOCSO-9, GLOCSO-10
Sorghum seed is a known pathway for Microdochium sorghi, with studies showing the pathogen can survive in seed for at least 18 months and cause high rates of seedling blight and reduced germination.
Agar plating
No standardized testing method.
Fungicide treatments, particularly carbendazim and thiabendazole, effectively reduced M. sorghi seedling blight and boosted growth, while Trichoderma viride and neem also lowered disease and improved yield.
GLOCSO-10
2025-06-30 19:05:15
CABI CPC
Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
GLOCSO-1
WATANABE, T., & HASHIMOTO, K. (1978). Recovery of Gloeocercospora sorghi from sorghum seed and soil, and its significance in transmission. Japanese Journal of Phytopathology, 44(5), 633-640.
GLOCSO-2
Bararpout, M. T., Korres, N. E., Allen, T. W., & Bond, J. (2017). Infection of Sorghum bicolor, selected grass species and Zea mays by G loeocercospora sorghi, causal pathogen of zonate leaf spot. Phytoparasitica, 45, 211-217.
GLOCSO-3
Jiang, Y., Xu, J., Hu, L., Liu, K. J., Xu, X. D., Liu, Z., Meng, W. L., 2018. First report of sorghum zonate leaf spot caused by Gloeocercospora sorghi in China.Plant Disease, 102(5) 1033.
GLOCSO-4
Stewart, S., Rodríguez, M., Mattos, N., & Abreo, E. (2019). First report of zonate leaf spot in sorghum caused by Microdochium sorghi in Uruguay. Agrociencia (Uruguay), 23(2), 94-98.
GLOCSO-5
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.
GLOCSO-6
Navi, S. S., Bandyopadhyay, R., Tonapi, V. A., Rao, T. G. N., Indira, S., Reddy, R. K., ... & 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.
GLOCSO-7
Dean, J. L. (1968). Germination and overwintering of sclerotia of Gloeocercospora sorghi.
GLOCSO-8
Singh, D. S., & Pavgi, M. S. (1982). Perpetuation of two foliicolous fungi parasitic on Sorghum, in India.
GLOCSO-9
sorghi is both seedborne and soil-present, with the ability to infect plants quickly. Bain, D. C. (1950). Fungi recovered from seed of Sorghum vulgare Pers.
GLOCSO-10
Mathur, K., Siradhana, B. S., & Lodha, B. C. (1987). Studies on seedling blight of sorghum caused by Gloeocercospora sorghi.
Zea mays
corn
No
CABI CPC, ISF RPLD, GLOCSO-1, GLOCSO-2
Seed is not a pathway in this host.
2025-02-02 21:08:37
CABI CPC
Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
ISF RPLD
International Seed Federation Regulated Pest List Database. pestlist.worldseed.org Nyon Switzerland
GLOCSO-1
WATANABE, T., & HASHIMOTO, K. (1978). Recovery of Gloeocercospora sorghi from sorghum seed and soil, and its significance in transmission. Japanese Journal of Phytopathology, 44(5), 633-640.
GLOCSO-2
Bararpout, M. T., Korres, N. E., Allen, T. W., & Bond, J. (2017). Infection of Sorghum bicolor, selected grass species and Zea mays by G loeocercospora sorghi, causal pathogen of zonate leaf spot. Phytoparasitica, 45, 211-217.
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