1. Fusarium crown rot(foot rot) • Caused by Fusarium spp. • Same fungus that causes scab • Hosts include wheat, barley, oats, corn, grasses

2. Fusarium crown rot history • Ubiquitous; probably present in the original prairie soil infecting native grasses • Early 1900s H.L. Bolley “wheat-sick soil” • Campaign across ND to use good seed and practice rotation • Posters in store windows

4. Yield loss from Fusarium crown rot • Long-term annual estimates of yield loss in Saskatchewan and Manitoba • 5-6% spring wheat • 11% barley • North Dakota estimates were similar, 9.5% yield loss for durham

5. Fusarium crown rot trialsHuntley, 2005 **An outlier was removed. If included, % yield reduction would be 11.7%

6. Fusarium crown rot trialsHuntley, 2005 Durham wheat **An outlier was removed. If included, % yield reduction would be 11.7%

7. Future: Fusarium crown rot control • Seed treatment • Late seeding • Don’t over-fertilize • Crop rotation to non-host: DON’T PLANT CORN!!! • Plant tolerant varieties

8. Fusarium crown rot(foot rot) • Caused by Fusarium spp. • Same fungi that cause scab • F. graminearum, F. culmorum, F. pseudograminearum • Hosts include wheat, barley, oats, corn, grasses • Residue-borne • Seed-borne Stress