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Phaeosphaeria avenaria f. sp. triticae (glume blotch )
Phaeosphaeria avenaria f. sp. triticae
glume blotch
Stagnospora avenae f.sp. triticae, Septoria avenae f.sp. triticea, Leptosphaeria avenaria f. sp. triticea
Canada, Germany, Austria, Brazil, Poland, Argentina, Temperate wheat growing areas
NY, ND, SD, WA, AZ, ID, MT, OK
2023-08-21
fungus
China
wheat, limited range of grasses (primarily Agropyron spp., Elymus spp.)
PHSPAT
1 Known Hosts
Triticum aestivum
wheat
No
RICHISTA, PHSPAT-2, PHSPAT-3, PHSPAT-5
Pathway not proven. Although the pathogen has been found on laboratory seed tests, it is unclear if the pathogen described in these tests is the Septoria form of the pathogen. Seed transmission has not been proven in nature. One reference indicates that there is little proof that spread occurs from seed. The pathogen is often confused with Stagonospora nodorum and is not as common.
Yes
Blotter incubation
This test has not been standardized or validated.
PHSPAT-2
RICHISTA
PHSPAT-2
Johnson, T. 1947. A Form of Leptosphaeria avenaria on Wheat in Canada. Canadian Journal of Research 25: 259-270,
PHSPAT-3
Krueger, J., and Hoffmann, G. M. 1978. Differenzierung von Septoria nodorum Berk. und Septoria avenae Frank f. sp. triticea T. Johnson. Z. Pflanzenkrankh. Pflanzenschutz 85:645-650.
PHSPAT-5
Bergstrom, GC. Stagonospora nodorum Blotch and Stagonospora avenae Blotch. In, Compendium of Wheat Diseases and Pests, Third Edition. Eds., W. W. Bockus, R. L. Bowden, R. M. Hunger, W. L. Morrill, T. D. Murray and R. W. Smiley. American Phytopathological Society, St. Paul, MN
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