Fusarium crown rot (foot rot)

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Fusarium crown rot(foot rot)

• Caused by Fusarium spp.
• Same fungus that causes scab
• Hosts include wheat, barley, oats, corn, grasses

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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

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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

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Fusarium crown rot trialsHuntley, 2005
Yield (bu/a) Yield (bu/a) Yield
Variety w/o Fusarium w/ Fusarium reduction
Alsen 59.7 52.8 11.5
Choteau 55.0 42.8 22.1
Explorer 48.6 43.8 9.8
Hank 58.2 47.6 18.3
Knudson 59.5 47.1 20.8
McNeal 51.2 45.8 10.2
MTO245 64.5 49.7 22.4
NorPro 56.6 44.6 21.0
Outlook 61.5 53.4 13.1
Reeder 57.9 45.2 21.7
An outlier was removed. If included, yield
reduction would be 11.7
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Fusarium crown rot trialsHuntley, 2005 Durham
wheat
Yield (bu/a) Yield (bu/a) Yield
Variety w/o Fusarium w/ Fusarium reduction
AC Avonlea 53.4 40.2 25
Ben 49.4 37.4 24
Kyle 32.3 27.3 16
Lebsock 53.1 40.4 24
Maier 51.4 38.5 25
Monroe 54.7 45.5 17
Mountrail 46.7 38.2 18
Utopia 45.4 41.6 8
Vic 47.2 37.1 21
Ward 52.8 39.7 25
An outlier was removed. If included, yield
reduction would be 11.7
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Future Fusarium crown rot control

• Seed treatment
• Late seeding
• Dont over-fertilize
• Crop rotation to non-host DONT PLANT CORN!!!
• Plant tolerant varieties

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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