Wheat Streak Mosaic Complex
- Issue type
- disease
- Seedborne
- Not established by our sources
- Resistance code
- -
- Affects
- Wheat
Symptoms
Bright yellow streaking on the leaves, worst toward the tip. The complex is several viruses, wheat streak mosaic virus, Triticum mosaic virus and wheat mosaic virus (High Plains), whose symptoms are almost indistinguishable and which do more damage together. Spread by the wheat curl mite from volunteer wheat. The K-State rating is the field reaction when one or more of these viruses is present.
Management
Control volunteer wheat, delay planting, use resistant varieties, and avoid planting next to maturing corn. Among the most damaging diseases in western Kansas.
Varieties with documented resistance
No variety here is described as resistant in words. The varieties below are rated on a numeric scale instead, which records how each one performed, susceptible ones included.
Varieties rated for this disease (80)
Rated on a 1-9 scale where 1 is most resistant, listed from the resistant end. A rating is a measurement, not a verdict: the susceptible end is shown too, because knowing what to avoid is half of choosing.
| Variety | Rating | Qualifier | Basis |
|---|---|---|---|
| KS Territory | 4 | Carries a gene giving temperature-sensitive resistance to wheat streak mosaic virus (MF991 footnote d). | Rated by its breeder |
| Byrd | 5 | Carries a resistance gene to the wheat curl mite, the vector of wheat streak mosaic virus (MF991 footnote e). | Independently observed |
| Byrd CL Plus | 5 | Independently observed | |
| KS Big Bow | 5 | Rated by its breeder | |
| KS Bill Snyder | 5 | Carries a gene giving temperature-sensitive resistance to wheat streak mosaic virus (MF991 footnote d). | Rated by its breeder |
| KS Mako | 5 | Carries a gene giving temperature-sensitive resistance to wheat streak mosaic virus (MF991 footnote d). | Rated by its breeder |
| KS Silverado | 5 | Rated by its breeder | |
| KS Tradition | 5 | Carries a gene giving temperature-sensitive resistance to wheat streak mosaic virus (MF991 footnote d). | Rated by its breeder |
| Snowmass | 5 | Carries a gene giving temperature-sensitive resistance to wheat streak mosaic virus (MF991 footnote d). | Independently observed |
| T158 | 5 | Carries a resistance gene to the wheat curl mite, the vector of wheat streak mosaic virus (MF991 footnote e). | Independently observed |
| TAM 112 | 5 | Carries a resistance gene to the wheat curl mite, the vector of wheat streak mosaic virus (MF991 footnote e). | Independently observed |
| AP 24 AX | 6 | Independently observed | |
| AP Prolific | 6 | Independently observed | |
| AP Roadrunner | 6 | Independently observed | |
| AP Sunbird | 6 | Independently observed | |
| AP18 AX | 6 | Independently observed | |
| AP503 CL2 | 6 | Independently observed | |
| Canvas | 6 | Carries a resistance gene to the wheat curl mite, the vector of wheat streak mosaic virus (MF991 footnote e). | Independently observed |
| Danby | 6 | Rated by its breeder | |
| Doublestop CL Plus | 6 | Independently observed | |
| Golden Hawk | 6 | Independently observed | |
| Guardian | 6 | Carries a gene giving temperature-sensitive resistance to wheat streak mosaic virus (MF991 footnote d). Carries a resistance gene to the wheat curl mite, the vector of wheat streak mosaic virus (MF991 footnote e). | Independently observed |
| Joe | 6 | Carries a gene giving temperature-sensitive resistance to wheat streak mosaic virus (MF991 footnote d). | Rated by its breeder |
| Kivari AX | 6 | Carries a resistance gene to the wheat curl mite, the vector of wheat streak mosaic virus (MF991 footnote e). | Independently observed |
| KS Dallas | 6 | Carries a gene giving temperature-sensitive resistance to wheat streak mosaic virus (MF991 footnote d). | Rated by its breeder |
| KS Hamilton | 6 | Carries a gene giving temperature-sensitive resistance to wheat streak mosaic virus (MF991 footnote d). | Rated by its breeder |
| KS Western Star | 6 | Carries a resistance gene to the wheat curl mite, the vector of wheat streak mosaic virus (MF991 footnote e). | Rated by its breeder |
| Larry | 6 | Rated by its breeder | |
| LCS Helix AX | 6 | Independently observed | |
| LCS Mint | 6 | Independently observed | |
| LCS Warbird AX | 6 | Independently observed | |
| Paradise | 6 | Independently observed | |
| Rockstar | 6 | Independently observed | |
| SY Wolf | 6 | Independently observed | |
| WB4422 | 6 | Independently observed | |
| WB4595 | 6 | Independently observed | |
| WB4792 | 6 | Independently observed | |
| Winterhawk | 6 | Independently observed | |
| AG Golden | 7 | Independently observed | |
| AG Icon | 7 | Independently observed | |
| AG Radical | 7 | Independently observed | |
| AM Cartwright | 7 | Independently observed | |
| AP Bigfoot | 7 | Independently observed | |
| AP EverRock | 7 | Independently observed | |
| Everest | 7 | Rated by its breeder | |
| Gallagher | 7 | Independently observed | |
| High Cotton | 7 | Independently observed | |
| High Country | 7 | Independently observed | |
| KS Flintlock | 7 | Rated by its breeder | |
| KS Providence | 7 | Rated by its breeder | |
| Langin | 7 | Carries a resistance gene to the wheat curl mite, the vector of wheat streak mosaic virus (MF991 footnote e). | Independently observed |
| LCS Atomic AX | 7 | Independently observed | |
| LCS Chrome | 7 | Independently observed | |
| LCS Galloway AX | 7 | Carries a resistance gene to the wheat curl mite, the vector of wheat streak mosaic virus (MF991 footnote e). | Independently observed |
| LCS Julep | 7 | Independently observed | |
| LCS Steel AX | 7 | Independently observed | |
| Orange Blossom | 7 | Independently observed | |
| Showdown | 7 | Independently observed | |
| Smith’s Gold | 7 | Independently observed | |
| Strad CL Plus | 7 | Independently observed | |
| SY Rugged | 7 | Independently observed | |
| SY Wolverine | 7 | Independently observed | |
| TAM 111 | 7 | Independently observed | |
| TAM 114 | 7 | Independently observed | |
| Tatanka | 7 | Rated by its breeder | |
| WB4347 | 7 | Independently observed | |
| WB4401 | 7 | Independently observed | |
| WB4515 | 7 | Independently observed | |
| Whistler | 7 | Carries a resistance gene to the wheat curl mite, the vector of wheat streak mosaic virus (MF991 footnote e). | Independently observed |
| Zenda | 7 | Rated by its breeder | |
| Bob Dole | 8 | Rated by its breeder | |
| KS Ahearn | 8 | Rated by its breeder | |
| LCS Radar | 8 | Independently observed | |
| LCS Valiant | 8 | Independently observed | |
| SY Monument | 8 | Independently observed | |
| WB Grainfield | 8 | Independently observed | |
| WB4269 | 8 | Independently observed | |
| WB4523 | 8 | Independently observed | |
| WB4699 | 8 | Independently observed | |
| Uncharted | 9 | Independently observed |
Rated by its breeder: the publisher of the rating also bred that variety. Still a measurement on the same scale as its rivals, but not an independent one.
Sources & References
Evidence: 2 sources, all independent references.
- Wheat Disease Identification (MF2994) · Kansas State University Research and Extension (2017), University or Government · what rests on it
- Kansas Wheat Variety Guide 2026 (MF991) · Kansas State University Research and Extension (2026), University or Government · what rests on it