Press Releases

  • Economic Impact Study Reveals Wheat Stem Sawfly Responsible For $33 Million in Annual Damages

    July 18, 2022

    The Colorado Association of Wheat Growers (CAWG) and Colorado State University recently released an economic impact study finding the wheat stem sawfly (WSS) causes approximately $33 million in damages annually to Colorado’s wheat crop. The purpose of the study is … Continue reading →

  • Colorado Wheat Outlook – July 8, 2022

    July 8, 2022

    Harvest continues to progress, however recent rainfall has caused some delays. Temperatures near 100 degrees are in the forecast for the weekend, meaning that will speed things up. Swathing is also occurring in Northeastern Colorado to help mitigate damage from … Continue reading →

  • Colorado Wheat Outlook – June 24, 2022

    June 24, 2022

    After a week of extreme heat, wind and no rain, crop conditions worsened. Not optimal weather for grain fill.  The crop is also starting to change color and is 2% mature. Harvest is anticipated to begin in Northeastern Colorado in … Continue reading →

  • Wheat Entomology Newsletter – June 22, 2022

    June 22, 2022

    Dr. Erika Peirce: Erika.Peirce@colostate.edu, 661-607-1789 Dr. Punya Nachappa: Punya.Nachappa@colostate.edu, 785-383-4873 Wheat Field Days We had a great time talking to everyone who attended wheat field days! Sadly, Erika and I came down with COVID and had to miss the field … Continue reading →

  • Colorado Wheat Disease Newsletter

    June 21, 2022

    Dr. Robyn Roberts Field Crops Pathologist and CSU Assistant Professor Robyn.Roberts@colostate.edu* 970-491-8239; @RobynRobertsPhD (Twitter) *Email is the best way to reach me DISEASE OBSERVATIONS Mosaic virus symptom reports are on the rise. Importantly, viruses typically exist in a complex in … Continue reading →

  • Colorado Wheat Disease Newsletter

    June 6, 2022

    Dr. Robyn Roberts Field Crops Pathologist and CSU Assistant Professor Robyn.Roberts@colostate.edu* 970-491-8239; @RobynRobertsPhD (Twitter) *Email is the best way to reach me DISEASE OBSERVATIONS Reports of mosaic virus symptoms have increased this past week, with moderate levels reported in symptomatic … Continue reading →

  • 2022 Colorado Wheat Field Days

    June 5, 2022

    Colorado State University Crops Testing is excited to announce the details for the 2022 Wheat Field Days. They are made possible by our farmer-cooperators, seed company and industry partners, and colleagues from the CSU College of Ag. and Ag. Experiment … Continue reading →

  • Colorado Wheat Entomology Newsletter – May 31, 2022

    May 31, 2022

    Dr. Erika Peirce: Erika.Peirce@colostate.edu, 661-607-1789 Dr. Punya Nachappa: Punya.Nachappa@colostate.edu, 785-383-4873 Wheat Stem Sawfly We are seeing high wheat stem sawfly pressure in our field sites at New Raymer. Here are some pictures of sawfly attack in New Raymer. Dr. Mason … Continue reading →

  • Colorado Wheat Outlook – May 27, 2022

    May 27, 2022

    Parts of Eastern Colorado (mostly south of I-70) saw some moisture over the last week – some of it in the form of rain and some of it in the form of heavy, wet snow. Temperatures did drop below freezing … Continue reading →

  • Colorado Wheat Disease Newsletter – May 23, 2022

    May 23, 2022

    Dr. Robyn Roberts Field Crops Pathologist and CSU Assistant Professor Robyn.Roberts@colostate.edu* 970-491-8239; @RobynRobertsPhD (Twitter) *Email is the best way to reach me DISEASE OBSERVATIONS We have gotten a few reports of mosaic virus symptoms, and samples from three different locations … Continue reading →

  • Colorado Wheat Outlook – May 20, 2022

    May 20, 2022

    Wheat conditions across Eastern Colorado are highly variable. Some wheat has started to head out. Freezing temperatures are in the forecast for the weekend, leading to concerns for potential freeze damage. Read the full report here.

  • Colorado Wheat Entomology Newsletter – May 16, 2022

    May 16, 2022

    Dr. Erika Peirce: Erika.Peirce@colostate.edu, 661-607-1789 Dr. Punya Nachappa: Punya.Nachappa@colostate.edu, 785-383-4873 Wheat Stem Sawfly Sawfly adults began to emerge in Weld and Morgan counties. Adult sawflies can only lay their eggs in wheat plants with a stem, which would be around … Continue reading →

  • Colorado Wheat Outlook – May 13, 2022

    May 13, 2022

    Despite last week’s rain, the crop conditions basically remained unchanged this week. This further drives home the point that what remains of Colorado’s wheat crop is living on borrowed time. The rain last week did buy the crop some more … Continue reading →

  • Colorado Wheat Disease Newsletter – May 9, 2022

    May 9, 2022

    Dr. Robyn Roberts Field Crops Pathologist and CSU Assistant Professor Robyn.Roberts@colostate.edu* 970-491-8239; @RobynRobertsPhD (Twitter) *Email is the best way to reach me DISEASE OBSERVATIONS There is still little disease activity in Colorado. There are reports of mosaic virus-like symptoms from … Continue reading →

  • Colorado Wheat Outlook – May 6, 2022

    May 6, 2022

    Overall crop condition worsened in this week’s NASS report. This was not surprising considering it had just experienced another week of high wind and high temperatures. However parts of Eastern Colorado received much needed rain later on in the week. … Continue reading →

  • Colorado Wheat Entomology Newsletter – May 2, 2022

    May 2, 2022

    Dr. Erika Peirce: Erika.Peirce@colostate.edu, 661-607-1789 Dr. Punya Nachappa: Punya.Nachappa@colostate.edu, 785-383-4873 Brown Wheat Mites Hot and dry conditions have worsened earlier reported brown wheat mite infestations. Multiple reports of heavy brown wheat mite populations near Arriba (Lincoln County) and Lamar (Prowers … Continue reading →

  • Colorado Wheat Outlook – April 29, 2022

    April 29, 2022

    A good portion of Eastern Colorado is expected to see strong wind gusts (anywhere from 45-50 mph) and low humidity today. Some areas had thunderstorms on Wednesday, but very little rain actually made it to the ground. The “good” and … Continue reading →

  • Colorado Wheat Disease Newsletter – April 25, 2022

    April 25, 2022

    Dr. Robyn Roberts Field Crops Pathologist and CSU Assistant Professor Robyn.Roberts@colostate.edu* 970-491-8239; @RobynRobertsPhD (Twitter) *Email is the best way to reach me DISEASE OBSERVATIONS There is one report of virus-like symptoms in Sedgwick County. A neighboring plot had lots of … Continue reading →

  • Colorado Wheat Outlook – April 22

    April 22, 2022

    Conditions continued to decline this week, with the “Very Poor” category gaining 5 points and the “Excellent” category dropping to zero. This is no surprise considering all that the wheat has been through. This week it faced more warm temperatures … Continue reading →

  • Colorado Wheat Entomology Newsletter – April 18

    April 18, 2022

    Dr. Erika Peirce: Erika.Peirce@colostate.edu, 661-607-1789 Dr. Punya Nachappa: Punya.Nachappa@colostate.edu, 785-383-4873 Introduction Hello, this is our second year conducting the Wheat Entomology Newsletter, led by Dr. Punya Nachappa, entomologist and Associate Professor in the Department of Agricultural Biology (www.nachappalab.com) and Dr. … Continue reading →