Setosphaeria rostrata
leaf spot of grasses
Exserohilum rostratum, Helminthosporium rostratum, Bipolaris rostrata, Drechslera rostrata, Exserohilum antillanum, Exserohilum gedarefense, Variant spelling Exserohilum gedarefensis, Helminthosporium halodes, Bipolaris halodes, Exserohilum halodes, Drechslera halodes, Helminthosporium halodes var. elaeicola, Helminthosporium halodes var. tritici, Helminthosporium leptochloae, Helminthosporium longirostratum, Exserohilum longirostratum, Exserohilum macginnisii, Setosphaeria prolata, Exserohilum prolatum, Drechslera prolata
Worldwide
Widespread, especially east of the Continental Divide
2023-08-21 16:54:40
fungus
Korea
Primarily grasses and grains, reported on other over 200 plant species, including several vegetable crops, but these seem to be experimental curiosity or occasional findings that are not confirmed. Only important grains listed below
DRECRO
6 Known Hosts
Saccharum officinarum
sugarcane
No
DRECRO-6
Pathway not proven. Reference suggested seed or dried fruit tissues associated with seed (seed fuzz) carried this pathogen into seedling flats, but the cause of seedling blights in their research could have been from four different pathogens found contaminating "seed". Sugar cane is often planted from propagative material.
Yes
Agar plating
DRECRO-6
Benomyl
See comment under test comment.
DRECRO-6
Byther, R.S., and Steiner, G.W. 1972. Four sugarcane seedling diseases in Hawaii: causal agents, control, and a selective medium for isolation. Phytopathology 62: 120-124.
Triticum aestivum
wheat
No
DRECRO-3
Pathway not proven. Seed infection has been demonstrated but seed transmission has not been shown to occur.
Richardson MJ, 1990. An Annotated List of Seed-borne Disease. International Seed Testing Association, Zurich, Switzerland
Sorghum bicolor
sorghum
No
DRECRO-3
Pathway not proven. Seed infection has been demonstrated but seed transmission has not been shown to occur.
Richardson MJ, 1990. An Annotated List of Seed-borne Disease. International Seed Testing Association, Zurich, Switzerland
Zea mays
corn
Pathway not proven
DRECRO-2,DRECRO-3,DRECRO-5
Seed infection has been demonstrated but seed transmission has not been shown to occur.
Yes
Blotter assay
DRECRO-2
McGee, DC. 1988. Maize Diseases: A reference Source for Seed Technologists. APS Press, St. Paul, MN USA. 150 pp.
Richardson MJ, 1990. An Annotated List of Seed-borne Disease. International Seed Testing Association, Zurich, Switzerland
Nelson RR and Osborne, JC, 1956. The relative prevalence and geographical distribution of fungi associated with moldy corn in eastern North Carolina in 1955. Plant Dis. Rept. 40:225-227
Oryza sativa
rice
No
DRECRO-3,DRECRO-4
Pathway not proven. References indicated seed may be contaminated by this pathogen, however, seed transmission was not demonstrated. It is also not clear how the seed was harvested and from established seed companies.
Yes
Blotter Assay
DRECRO-4
Richardson MJ, 1990. An Annotated List of Seed-borne Disease. International Seed Testing Association, Zurich, Switzerland
Ouedraogo I , Wonni I, Sereme D, Kabore K B. 2016. Survey of Fungal Seed-Borne Diseases of Rice in Burkina Faso. International Journal of Agriculture Innovations and Research 5; 2319-1473
Poaceae family
grasses
No
No references found indicating seed is a pathway.
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