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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, CABICPC, ANNOLIST
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.
ISFRPLD, 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.
CABICPC
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
CABICPC
ANNOLIST
ISFRPLD
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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