Wednesday, June 29, 2022

2022 Cereal Rust Risk Report (June 21 to 27, 2022)

The latest Prairie PCDMN wind trajectory cereal rust risk report is available for download now at the following link: June 21 to 27, 2022 report.  

As of the week of June 21-27, 2022 the overall Prairie cereal rust risk assessments and need for in-crop scouting are as follows:

Pacific Northwest – There was a moderate number of wind trajectories that passed over the PNW region from June 21-27, 2022 and into the prairies, while key stages of crop development are occurring or starting to occur for both winter and spring wheat, respectively.  In terms of stripe rust development in the PNW there have been increasing reports of occurrence including in commercial fields.  Some Prairie regions where most trajectories ended up did receive more moisture from June 21-27, 2022 versus the Peace region areas between Calgary and Edmonton, and areas south of Saskatoon and west of Regina.  Thus, as of June 27, 2022, the risk of stripe rust appearance from the PNW is low to moderate, while scouting for this disease in the Prairie region should be considered for those locations that received increased trajectories and moisture, especially where stripe rust susceptible varieties are planted.



Kansas-Nebraska corridor – Currently there is limited leaf and stripe rust development in this corridor, a low number of recent wind trajectories from this area, while some moisture occurred in the central to eastern Prairie region.  Given these conditions, as of June 27, 2022, the risk of leaf and stripe rust appearance from the Kansas-Nebraska corridor is generally limited and scouting for these diseases in the Prairies is not urgent.