cropCENTRAL | Field Crop Production Resources

Nearly all of Illinois received below-normal rainfall in June, with the lowest amounts found in east central Illinois. In contrast, most of the state has received above-normal rainfall in July, with very high totals in parts of southern Illinois, above-normal amounts in much of northern Illinois, and a strip of moderately below-normal rainfall that roughly follows I-74 from the Quad Cities to Danville. The US drought map from last week (July 21) has about a third of the state as abnormally dry,…

Each week, I put out a request to crops educators and specialists from the University of Illinois to compile an update to share with the entire state. We hope you find this information useful. If you have any questions or suggestions about the format or any feedback in general about these updates, please email me (harbach2@illinois.edu).
Nick Seiter, University of Illinois Field Crop Insects Extension Specialist
I received a report of spraying for spider mites in an area of northeastern Illinois that has missed much of the recent rains;…

Each week, I put out a request to crops educators and specialists from the University of Illinois to compile an update to share with the entire state. We hope you find this information useful. If you have any questions or suggestions about the format or any feedback in general about these updates, please email me (harbach2@illinois.edu).
Aaron Hager, Extension Weeds Specialist, University of Illinois
Nearly all herbicide labels (soil-applied or postemergence) have rotational crop intervals that specify the amount of time that must elapse between herbicide application and planting a rotational crop.…

Tar spot on corn is here to stay in Illinois. Given that the pathogen that causes tar spot on corn can overwinter in infected residue, once the pathogen is in a field, it is more likely to be problematic in that field in the future. If you’ve been a victim of high incidence and/or severity of corn tar spot in your fields, you know how limiting this disease can be on corn yield.
 
As this disease can be seriously yield-limiting AND the pathogen is relatively new yet in Illinois,…

Each week, I put out a request to crops educators and specialists from the University of Illinois to compile an update to share with the entire state. We hope you find this information useful. If you have any questions or suggestions about the format or any feedback in general about these updates, please email me (harbach2@illinois.edu).
Aaron Hager, Extension Weeds Specialist, University of Illinois
We received multiple reports of poor waterhemp control following application of postemergence soybean herbicides.…

Each week, I put out a request to crops educators and specialists from the University of Illinois to compile an update to share with the entire state. We hope you find this information useful. If you have any questions or suggestions about the format or any feedback in general about these updates, please email me (harbach2@illinois.edu).
Emerson Nafziger, Agronomy Extension Specialist, University of Illinois
Although rain fell in many places in central and northern Illinois last weekend (June 25-26) this week’s drought map shows even more of Illinois in “abnormally dry”…

Each week, I put out a request to crops educators and specialists from the University of Illinois to compile an update to share with the entire state. We hope you find this information useful. If you have any questions or suggestions about the format or any feedback in general about these updates, please email me (harbach2@illinois.edu).
Nick Seiter, Extension Field Crops Entomologist, University of Illinois
I’m receiving more reports of stink bugs than I typically do,…