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Ohio State University Extension

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Weed Control

C.O.R.N. Newsletter Articles

  1. Midwest Mechanical Weed Control Field Day – Sept. 27, 2023

    Author(s): Eric Richer, CCA , Author(s): James Jasinski

    Mechanical Weed Control LogoAre you looking for new ways to manage resistant weeds or are you just looking for something to do the week after Farm Science Review? I encourage you to attend the Midwest Mechanical Weed Control Field Day on September 27, 2023, held this year in Wooster, Ohio at the CFAES Wooster main campus research farm. 

    Issue: 2023-31

  2. Alternative Spring Burndown/Postemergence Strategies when Herbicides are in Short Supply

    Note:  This article represents the combined thinking of weed scientists from Indiana, Kentucky, Michigan, Ohio and Pennsylvania

    Issue: 2021-40

  3. Rye can be a pesky weed.

    Author(s): Mike Gastier, CCA

    In recent years Ohio has seen a huge resurgence of rye usage as a cover crop. While rye can be a good option as a cover crop, it is also a persistent threat as a weed in subsequent crops and neighboring fields. In parts of Ohio this season, volunteer rye is obvious in many crop fields. This is usually a minor threat to the crop, but in certain circumstances, it does create big problems.

    Issue: 2021-19

  4. Poison Hemlock Control

    Author(s): Curtis Young, CCA

    Poison hemlock remains one of the more persistent and prevalent poisonous weeds that we deal with in Ohio.  It's most typically a biennial plant (sometimes perennial), emerging from seed in year one and developing into a low-growing rosette by late fall.  The rosette overwinters and then resumes growth in the spring of year two.  Stem elongation initiates sooner in spring than many other biennials, and this is followed by continued growth and development into the often very tall plant with substantial overall size.  Flowering and seed production occur in summer. 

    Issue: 2020-07

  5. Omitting residual herbicides in soybeans – really - we have to have this argument again?

    According to our network of sources, the effectiveness of new soybean trait systems has some growers once again thinking about omitting preemergence residual herbicides from their weed management programs.  Some people apparently need to learn the same lessons over and over again.  Having gone through this once in the early 2000’s when Roundup Ready soybeans had taken over and we all sprayed only glyphosate all day every day, we think we’re pretty sure where it leads.  We’re sensitive to concerns about the cost of production, but the cost-benefit analysis for residual herbicides is way in t

    Issue: 2020-05
More Newsletter Articles

Publications

  1. Ohio, Indiana and Illinois Weed Control Guide, Bulletin 789
    12/2020

    Ohio, Indiana and Illinois Weed Control Guide, Bulletin 789. Publication gives detailed guidance on weed control selections. Numerous tables by crop and application help producers select the best product option for their weed control situation. Hard copy and PDF available for purchase

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