Five wheat fields have been confirmed positive for Wheat streak mosaic virus (WSMV) in southern Alberta from Pincher Creek to Medicine Hat. WSMV is a pathogen that is endemic to Alberta and shows up occasionally in wheat and winter wheat crops, but rarely on barley. The last time Alberta had a WSMV outbreak was 2015…

On June 1, 2022 we launched the updated Prairie Crop Disease Monitoring Network Quick Disease Reporter Tool (PCDMN QDRT) for the 2022 growing season (https://prairiecropdisease.blogspot.com/2022/06/announcing-2022-launch-of-prairie-crop.html).   This blog post and others regarding the PCDMN QDRT in 2021 and 2022 are now outdated as various updates have been done with the app.  These updates have been focused…

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…

2022 moisture conditions in many Prairie regions are shaping up to be conducive for the development of leaf spot diseases in barley and wheat.  Although crop rotation and variety resistance are useful strategies, rotations typically need to be at least two years between host crops.  In addition, the variety being grown may not have a…

The latest Prairie PCDMN wind trajectory cereal rust risk report is available for download now at the following link: June 14 to 20, 2022 report.   As of the week of June 14-20, 2022 the overall Prairie cereal rust risk assessments and need for in-crop scouting are as follows:  Pacific Northwest – There was a larger number…

Over the last two weeks pathologists in Alberta received reports of white flecking on leaves in wheat (June 13, 2022) and barley (June 4 and 14, 2022).  The symptoms were not typical of fungal leaf spots including scald, net blotch, spot blotch in barley, or tan spot or the septoria complex in wheat.  Here are…

The latest Prairie PCDMN wind trajectory cereal rust risk report is available for download now at the following link: June 7 to 13, 2022 report.   As of the week of June 7-13, 2022 the overall Prairie cereal rust risk assessments and need for in-crop scouting are as follows: Pacific Northwest – Although there were a larger…

Our PCDMN wind trajectory and weather update for June 7-13, 2022 is a bit delayed.  However, the overall Prairie rust risk for this period is low given generally limited rust development in source USA locations.  Stay tuned for further updates. 1.      Rust development in source USA locations, June 7-13, 2022: a.       Pacific Northwest (PNW)  …

The latest Prairie wind trajectory cereal rust risk report is available for download now at the following link: May 31-June 6, 2022 report.   As of the week of May 31-June 6, 2022 the overall Prairie cereal rust risk assessments and need for in-crop scouting are as follows: Pacific Northwest – Given the reduced number of reverse…

The latest Prairie wind trajectory cereal rust risk report is available for download now at the following link: May 24-30, 2022 report.   As of the week of May 24-30, 2022 the overall Prairie cereal rust risk assessments and need for in-crop scouting are as follows: Pacific Northwest – Even though there were a increased number of…