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EVENT: 2022 Ag Field Day at Monmouth Research Farm

  • June 30, 2022


The Northwest Illinois Agriculture Research and Demonstration Center outside of Monmouth, Illinois will be holding an Ag Field Day on July 27 this year. The program will run from 8 a.m. to 11:30 p.m. Presenters for the field day are Nick Seiter, Emerson Nafziger, Trent Ford, Phillip Alberti, and Greg Steckel. Topics will include corn rootworm, nitrogen management, climate trends, hemp, and corn/soybean planting dates. The program is free to attend, and water/light refreshments will be provided.…

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Illinois Crops Update 5/27/2022

  • May 27, 2022

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, field crops entomology Extension specialist, University of Illinois
There have been relatively few early-season insect problems reported so far.…

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Illinois Crops Update 5/20/2022

  • May 20, 2022

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, field crops entomology Extension specialist, University of Illinois
I have received few reports of insect damage to date,…

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Illinois Crops Update 5/13/2022

  • May 13, 2022

Welcome to the first weekly crops update from Illinois Extension. Each week, I put out a request to crops educators and specialists from University of Illinois to compile an update to share with the entire state. We hope you find this information useful, and if you have any questions or suggestions about the format, please email me (harbach2@illinois.edu).
Emerson Nafziger, agronomy specialist and professor emeritus Dept. of Crop Sciences
While we welcome the warm weather that has dried fields and enabled a lot of planting this week,…

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2021 Applied Research Report Now Available

  • February 2, 2022

Each year, we produce a report of our applied research efforts related to insect and disease management in field crops. New for this year, we’ve created a landing page at https://extension.illinois.edu/global/field-crop-insect-and-disease-applied-research, where you can view this year’s report along previous versions (2018-2020). The 2021 report includes several highlights, such as:

  • Western and northern corn rootworm Bt resistance monitoring, as well as trait performance in field experiments
  • New surveys of dectes stem borer stem tunneling and corn rootworm sticky traps,

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How widespread is dectes stem borer in Illinois? Help us find out

  • September 1, 2021

Have you had issues with dectes stem borer in soybean over the last several years? We are kicking off a project this fall to better understand dectes stem borer populations in Illinois – where they are most common, how severe they are, and how they vary from year to year. If you are interested in contributing to this effort, we are seeking volunteers willing to do the following:
Choose one or more soybean fields. This could be a field where you have had dectes problems in the past,…

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Fall Armyworm in Pasture, Alfalfa, and Double-cropped Soybean

  • August 25, 2021

Over the last two weeks, reports of fall armyworm (Spodoptera frugiperda) activity in southern and western Illinois have been on the rise, with reports of severe injury in some cases. The Southern U.S. has had a big year for fall armyworm (you can read more about their experience here, as well as find links to additional control information from the states involved: https://www.dtnpf.com/agriculture/web/ag/crops/article/2021/08/02/fall-armyworm-invading-southern). This is a migratory pest, and moth flights have been arriving both earlier and at higher numbers than in previous years.…

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Guess Who’s Back – Japanese Beetle Emergence Begins in Illinois

  • June 22, 2021

Japanese beetle emergence is beginning throughout Illinois. While they get a lot of attention every year, the real impact on corn and soybean yield is generally pretty minor. (If you have roses, sassafras trees, or a golf course, different story). A few things to keep in mind when you scout:
Check the field interior as well as the edges. It’s not uncommon to find higher numbers (and damage) at the edge of the field than the interior.…

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New for 2021: Join the Corn Rootworm Adult Monitoring Network in Illinois (Updated contact information)

  • June 8, 2021

Nick Seiter, Joseph Spencer, and Kelly Estes
Update: please email nseiter@illinois.edu if you are interested in participating in this effort.
Are you interested in learning more about the corn rootworm populations in your field? Have you seen more northern corn rootworm adults over the last few years? Our
colleagues Dr. Erin Hodgson and Ashley Dean at Iowa State began a volunteer-driven corn rootworm monitoring network in Iowa last year, and we are cooperating with them to bring this effort to Illinois in 2021.…

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Watch for early-season pests when crop development is slow

  • May 17, 2021

While cool temperatures are not necessarily “good” for pests (they need heat units to develop too), conditions that delay growth do leave the crop in a vulnerable stage for a longer period of time. Combined with the stress of wet, cool conditions, early season pests can reduce stands and result in replants.
Seedcorn maggot. We have been receiving reports of seedcorn maggot damage in soybean this year, driven by slow germination in many fields during the window of larval activity.…

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