Colorado Wheat Entomology Newsletter – 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 Zadoks 32. However, if there are not enough hosts, they may lay multiple eggs per […]
Colorado Wheat Outlook – 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 time, but it is still going to need more rain as soon as possible. Read […]
Colorado Wheat Disease Newsletter – 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 Sedgwick county, but no stripe rust or other fungal diseases to report. Read the Full […]
Colorado Wheat Outlook – 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. Totals ranged anywhere from 0.20-2.50 inches according to CoCoRaHS. Read the Full Report Here
Colorado Wheat Entomology Newsletter – 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 County). The populations were above economic threshold levels. Low to moderate levels reported near Julesburg […]
Colorado Wheat Disease Newsletter – 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 volunteer wheat that likely contributed, since volunteer wheat can harbor the mite that spreads several […]
Colorado Wheat Outlook – April 22
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 and extreme wind, with even more in the forecast next week. Still no rain in […]
Colorado Wheat Entomology Newsletter – April 18
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. Erika Peirce, a Postdoctoral Fellow working with Dr. Nachappa. If you suscept you have insects/mites, […]
Colorado Wheat Outlook – April 15
The drought monitor remained unchanged this week while the “Poor” category gained six points on the crop condition report. Eastern Colorado faced another week of dry conditions and extreme wind. Click Here to View the Full Report.
Colorado Wheat Disease Newsletter
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 INTRODUCTION Welcome to a new season of the Wheat Disease Newsletters! My name is Robyn Roberts and I joined Colorado State University in August 2020 as the new field crops pathologist and assistant […]