Wheat Entomology Newsletter – May 1, 2023
Adam Osterholzer: adam.osterholzer@colostate.edu, 970-222-9568 Dr. Punya Nachappa: Punya.Nachappa@colostate.edu, 785-383-4873 Introduction We are excited to begin our third year conducting the Wheat Entomology Newsletter! Our team is led by Dr. Punya Nachappa, entomologist and Associate Professor in the Department of Agricultural Biology (www.nachappalab.com). Adam Osterholzer, our Research Associate in the CSU Wheat Entomology Program, will help […]
Colorado Wheat Disease Newsletter
Dr. Robyn Roberts Field Crops Pathologist and CSU Assistant Professor Robyn.Roberts@colostate.edu* 970-491-8239 *Email is the best way to reach me Disease Observations Common root rot A few fields have reported a small amount of common root rot. This disease is caused by a complex of several soil-borne fungi. Prolonged drought stress coupled with high soil […]
Colorado Wheat Disease Newsletter
Dr. Robyn Roberts Field Crops Pathologist and CSU Assistant Professor Robyn.Roberts@coloradostate.edu * 970-491-8239 *Email is the best way to reach me INTRODUCTION Welcome to the 2023 growing season! I am excited to bring you the newsletters again, which will come out every 2 weeks. If you have pathology concerns, please don’t hesitate to […]
Wheat Entomology Newsletter – 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 days on June 13th and 14th. If you were not able to attend or still […]
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 DISEASE OBSERVATIONS Mosaic virus symptom reports are on the rise. Importantly, viruses typically exist in a complex in Colorado, including Wheat streak mosaic virus (WSMV), Triticum mosaic virus (TriMV), and High Plains Wheat […]
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 DISEASE OBSERVATIONS Reports of mosaic virus symptoms have increased this past week, with moderate levels reported in symptomatic fields. All of the samples we have tested so far this year have been positive […]
Colorado Wheat Entomology Newsletter – 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 and Sally Diamond-Jones also report high pressure in Akron. Ron Meyer said that crop scouts […]
Colorado Wheat Disease Newsletter – 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 in Sedgwick county have tested positive for both Wheat streak mosaic virus (WSMV) and Triticum […]
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 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 […]