2006 U.S. Oat Crown Rust Race Survey

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2006 U.S. Oat Crown Rust Race Survey

• M.L. Carson and G. Ochocki, USDA Cereal Disease
  Lab
• St. Paul, MN

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Mean Virulence - 2006

• Winter Oat Region
• Ave. virulence 15.5 (out of 28)
• Range 3-20

• Spring Oat Region
• Ave. virulence 14.8
• Range 2-23

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St. Paul Buckthorn Nursery 2006

• Only three Avena accessions were crown rust free
• AC Leggett (Pc68 Pc94)
• PI 258731 (WIR 5201 A. strigosa)
• A. murphyii P12