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Wheat leaf rust ( Puccinia triticina ) in Canada in 2006

Wheat leaf rust ( Puccinia triticina ) in Canada in 2006. Brent D. McCallum and Pat Seto-Goh, Cereal Research Centre, Agriculture and Agri-Food Canada. Wheat Leaf Rust 2006.

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Wheat leaf rust ( Puccinia triticina ) in Canada in 2006

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  1. Wheat leaf rust (Puccinia triticina) in Canada in 2006 Brent D. McCallum and Pat Seto-Goh, Cereal Research Centre, Agriculture and Agri-Food Canada

  2. Wheat Leaf Rust 2006 • Light in eastern and central Manitoba due to dry conditions but more severe in western Manitoba and eastern Saskatchewan. • Severity averaged 10.2% (flag leaf coverage) in Manitoba and 5.3% in Saskatchewan

  3. Virulence Analysis • 317 isolates from across Canada (MB+SK = 317, ON = 19, QC = 3, PEI = 16). • 31 virulence phenotypes identified. • Most common were TDBG (50.1%), TDBJ (16.7%), MFDS (5.1%).

  4. U of M Campus, winter wheatJune 20, 2006

  5. U of M Campus, winter wheatJune 20, 2006

  6. Saskatchewan, spring wheat, July 24+25 2006

  7. Saskatchewan, spring wheat, July 24+25 2006

  8. Stripe rust teliospores

  9. Severity of Stripe Rust in Saskatchewan July 24+25 2006 1 1 0 0 0 1 0 20 2 5 2 0 10 0 50 10 25 50 50 0 0 0

  10. Leaf and Stripe Rust 2006 • Low to moderate levels of leaf rust infection. • Dominant leaf rust virulence phenotype TDBG. • Stripe rust epidemic on spring wheat in central Saskatchewan and in Alberta.

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