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Stenocarpella macrospora (dry rot of maize )
Stenocarpella macrospora
dry rot of maize
Diplodia macrospora, Macrodiplodia macrospora, Macrodiplodia zeae var. macrospora, Stenocarpella zeae
Africa, Asia, Australia, South America.
Eastern, southeastern and southern US
2023-09-05
fungus
Chile, Korea, Thailand
corn
EPPO Code: DIPDMC
Not known to occur in the western United States. EU countries were removed in 2022. (EPPO)
1 Known Hosts
Zea mays
corn
Yes
DIPDMC-3,DIPDMC-4,DIPDMC-5,CABI CPC,ANNO LIST
Only one report of natural seed transmission was found. All other reports used artificially inoculated seeds., However, seed contamination and a decrease in seed quality has been established and accepted.
Yes
Molecular methods, Blotter - solid or liquid media methods
NSHS does not have a method for S. macrospora.
ISF RPLD,DIPDMC-6
Fungicides
Chemical Control, Seed treatments are fairly effective in controlling seedling blight, but once the fungus is established in the soil, crop rotation is necessary to eliminate it.
CABI CPC
DIPDMC-3
McGee, DC. 1988. Maize Diseases: A reference Source for Seed Technologists. APS Press, St. Paul, MN USA. 150 pp.
DIPDMC-4
Casa RT; Zambolim L; Reis EM, 1998. Transmission and control of Diplodia in maize seeds. Fitopatologia Brasileira, 23:436-441
DIPDMC-5
Siqueira, CS, Barrocas, EN, Machadom JC, Corrêa, CL. 2014. Potential for transmission of Stenocarpella macrospora from inoculated seeds to maize plants grown under controlled conditions. Journal of Seed Science, 36:154-161
CABI CPC
Crop Protection Compendium. Wallingford, UK: CAB International. www.cabi.org/cpc.
ANNO LIST
Richardson MJ, 1990. An Annotated List of Seed-borne Disease. International Seed Testing Association, Zurich, Switzerland
ISF RPLD
International Seed Federation Regulated Pest List Database. pestlist.worldseed.org Nyon Switzerland
DIPDMC-6
Barrocas, E., Machado, J., Almeida, M., Botelho, L., & Pinho, É. (2012). Sensibility of the pcr technique in the detection of stenocarpella sp. associated with maize seeds. Revista Brasileira de Sementes, 34(2), 218–224. Retrieved September, 2021
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