Insects

Rootworm Beetle Emergence – 2024 Monitoring Program

  • June 25, 2024

Corn rootworm beetles will begin emerging throughout Illinois over the next couple of weeks (we noticed the first few western corn rootworm beetles of the year at our Urbana field site earlier this week). There are a number of things we can learn by keeping track of corn rootworm emergence, particularly in fields that have a history of rootworm problems:

  • Control performance. Usually, our first indication that a local population is developing resistance to a Bt trait package is elevated numbers of beetles emerging from traited corn;

…

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Corn Rootworm Bt Resistance Webinar Today at 11am

  • March 30, 2023

Register for today’s 11am central Webinar
Bt Resistance and Management Recommendations for Illinois
REGISTER NOW
Corn rootworm remains the most economically damaging insect pest of corn in Illinois, though its impact in recent years has primarily been felt in the northern third of the state. The ongoing development of resistance to Bt traits has complicated management decisions for Illinois farmers. Join University of Illinois scientists to discuss the status of rootworm populations and Bt resistance throughout Illinois,…

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2023 Illinois Crop Management Conference

  • January 24, 2023

If you haven’t already, there is still time to register at the early bird rate for the Illinois Crop Management Conferences in Champaign and Sycamore.  We will also be offering an online option, as we have the past couple years, for those that prefer to view recorded presentations as their schedule allows.
CHAMPAIGN | FEB. 7
REGISTER HERE – https://go.illinois.edu/23CMC-Champaign
AGENDA – CLICK HERE
Registration on or before Jan. 31 is $80;…

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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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