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.
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.
