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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.…

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2020 Applied Research Results now available

  • January 27, 2021

Every year, University of Illinois entomologists and plant pathologists conduct a variety of field experiments to evaluate control methods, survey for invasive and established pests, and inform management decisions for plant diseases and insect pests. We publish the results of these experiments in an annual report,…

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2020 Insect Numbers Low in Many Areas of the State

  • October 1, 2020

Despite the chaos that 2020 has brought us, the Illinois statewide corn and soybean insect survey was completed this past summer. With the goal of estimating densities of common insect pests in corn and soybean cropping systems throughout the 9 crop reporting districts in Illinois,…

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Assessing Corn Rootworm Damage – Now is the Time

  • August 18, 2020

Corn rootworm activity, in general, appears higher in much of Illinois than it has been for the last several years. Along with higher activity, resistance to Bt traits in western and northern corn rootworm remains our top insect management concern in Illinois corn.…

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Spider Mites in Soybean

  • July 8, 2020

Spider mites often show up when it’s hot and dry outside. Given our current weather (and the promise of more heat to come), it’s a good time to review our scouting and management recommendations. Spider mites feed on a wide variety of plants,…

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