Wheat Entomology Newsletter – September 18, 2024
Adam Osterholzer: adam.osterholzer@colostate.edu, 970-222-9568 Dr. Punya Nachappa: Punya.Nachappa@colostate.edu, 785-383-4873 Visit our website at: https://www.csuwheatentomology.com/. Wheat Stem Sawfly State-Wide Results A statewide survey of WSS infestation has been conducted since 2013 to determine the scope of infestation across the state. Several sites are surveyed each year post-harvest, with the number of sites collected per county being […]
Colorado Wheat Disease Newsletter
Summary: Low levels of stripe rust were detected in Colorado, along with moderate levels viral diseases. Dr. Robin 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 Stripe Rust Stripe rust was found in several counties at low levels (Figure 1). Stripe rust […]
Wheat Entomology Newsletter
Adam Osterholzer: adam.osterholzer@colostate.edu, 970-222-9568 Dr. Punya Nachappa: Punya.Nachappa@colostate.edu, 785-383-4873 Visit our website at: https://www.csuwheatentomology.com/ Wheat Stem Sawfly Adult Flight in New Raymer We have continued our survey for adult sawflies twice per week at 7 sites in New Raymer and 3 sites in Orchard. The graph depicting adult population over the 13-year period is on […]
Wheat Entomology Newsletter
Request For Crop Rotation Field Sites: CWRF-funded research projectAs part of our CWRF-funded research, we are studying the impacts of crop rotations on sawfly infestations, and we need more field sites! If you are interested in participating, please contact Adam about your rotation history and our team will come to sample your fields. Adam Osterholzer: […]
Colorado Wheat Disease Newsletter
Summary: Low levels of stripe rust was detected in Colorado, along with moderate levels of bacterial and viral diseases. 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 Stripe RustStripe rust was found in Kit Carson and Yuma counties at very low levels […]
Colorado Wheat Disease Newsletter
Summary: TriMV was detected in Colorado. Watch for stripe rust, viruses, fusarium head blight, root and crown rots, and fungal leaf diseases. *Addendum: My group detected bacterial leaf streak disease in samples from Southeastern Colorado today. While this has not been a major problem in Colorado in the past, the disease has been re-emerging and […]
Wheat Entomology Newsletter
Adam Osterholzer: adam.osterholzer@colostate.edu, 970-222-9568Dr. Punya Nachappa: Punya.Nachappa@colostate.edu, 785-383-4873Visit our website at: https://www.csuwheatentomology.com/. Request For Crop Rotation Field Sites: CWRF-funded research projectAs part of our CWRF-funded research, we are studying the impacts of crop rotations on sawfly infestations, and we need more field sites! If you are interested in participating, please contact Adam about your rotation […]
Wheat Entomology Newsletter
We are excited to begin our fourth 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. We welcome wheat pest questions from growers, please don’t hesitate to reach […]
2023 Colorado Wheat Stem Sawfly Survey Report
Research Assistant Authors: Ashley Raffa, Anne Sellman, Johanna Merkel, Zhi Mei Maria Lee, Ella Stankiewicz Adam Osterholzer: adam.osterholzer@colostate.edu, 970-222-9568 Dr. Punya Nachappa: Punya.Nachappa@colostate.edu, 785-383-4873 Colorado state-wide wheat stem sawfly survey The CSU Wheat Entomology Program, with the support of Colorado Wheat, conducts an extensive annual state-wide survey for wheat stem sawflies. For over a decade, […]
Wheat Entomology Newsletter – June 26, 2023
Adam Osterholzer: adam.osterholzer@colostate.edu, 970-222-9568 Dr. Punya Nachappa: Punya.Nachappa@colostate.edu, 785-383-4873 Grass sawfly We have not observed any grass sawfly larvae in our field surveys. This suggests that the larvae have matured and have dropped to the soil. They will form pupae in the soil in which they will remain until the following spring. We will monitor […]