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Pantoea stewartii (stewart's wilt of corn, bacterial wilt of maize )
Pantoea stewartii
stewart's wilt of corn, bacterial wilt of maize
Aplanobacter stewartia, Bacillus stewartii, Bacterium stewartia, Erwinia stewartia, Pantoea stewartii subsp. Indologenes, Pantoea stewartii subsp. stewartii, Phytomonas stewartii, Pseudobacterium stewartii, Pseudomonas stewartii, Xanthomonas stewartii
Africa: Benin, Togo. Asia: China, India, Jordan, Malaysia, South Korea, Thailand, Vietnam. Europe: Italy, Russia, Slovenia. Americas: Canada, USA, Costa Rica, Mexico, Argentina, Bolivia, Guyana, Peru.
Widespread but not a lot in the northwest.
2024-04-12
bacterium
China, Mexico, South Korea, Vietnam
Zea mays, all subspecies and types. Experimental inoculations into grasses, sudan grass and wheat
ERWIST
Formerly Erwinia stewartii, this is an enterobacterial plant pathogen that causes Stewart’s wilt of maize. It is considered native to the Americas and has been introduced to other parts of the world by infested maize seeds (ERWIST-10).
1 Known Hosts
Zea mays
corn
Yes
ERWIST-2, ERWIST-3, ERWIST-4, CABICPC, ISFRPLD, ERWIST-10, ERWIST-10
The seed transmission of Pantoea stewartii is well documented and accepted. Embryonic infection documented. Requires significant disease symptoms in field for seed transmission to occur.
Yes
Grow out, Semi-selective plating, PCR, ELISA
ELISA is the NSHS standard method
ELISA is the NSHS standard method
ERWIST-6, CABICPC, NSHSUSDA
Biological, Chemical
The use of resistant varieties is effective. Several physical treatments, chemicals and antibiotic treatments have been tested with limited success. Mitigation of corn flea beetle with chemicals or biologicals is also effective.
ERWIST-7, ERWIST-8, ERWIST-9, CABICPC
ERWIST-2
Ivanoff SS, 1933. Stewart's wilt disease of corn, with emphasis on the life history of Phytomonas stewartii in relation to pathogenesis. Journal of Agricultural Research, 47:749-770.
ERWIST-3
Rand FV, Cash LC, 1933. Bacterial wilt of corn. United States Department of Agriculture Technical Bulletin, 362:1-32
ERWIST-4
Smith EF, 1914. Stewart's disease of sweet corn (maize). In: Vascular Diseases, 3. Washington, DC, USA: Carnegie Institution of Washington, 89-147.
CABICPC
ISFRPLD
ERWIST-10
Nechwatal, J., Friedrich‐Zorn, M., Theil, S., Gebauer, P., & Wensing, A. (2018). Validation of a specific PCR screening test for Pantoea stewartii subsp. stewartii in maize (Zea mays) samples. Bulletin OEPP, 48(1), 78–85. https://doi.org/10.1111/epp.12448
ERWIST-6
Block CC, Shepherd LM, Munkvold G, 2011. Comparison of nine PCR primer sets designed to detect Pantoea stewartii subsp. stewartii in maize. In: Phytopathology, 101. S16.
NSHSUSDA
ERWIST-7
Munkvold, G.P., McGee, D.C. and Iles A., 1996. Effects of imidacloprid seed treatment of corn on foliar feeding and Erwinia stewartii transmission by the corn flea beetle. Plant Disease 80; 747-749
ERWIST-8
Pataky, et. al., 2005. Rates of seed treatment insecticides and control of Stewart's wilt in sweet corn. Plant Disease 89; 262-268
ERWIST-9
Kuhar, et. al. 2002. Control of corn flea beetle and Stewart's wilt in sweet corn with imidacloprid and thiamethoxam seed treatments. Crop Protection 21; 25-31
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