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Agronomic Crops Network

Ohio State University Extension

CFAES

C.O.R.N. Newsletter

  1. 2023 Weed Science Field Day July 12

    Author(s): Alyssa Essman

    The 2023 OSU Weed Science Field Day will be held on Wednesday, July 12th at the Western Ag Research Station in South Charleston, OH. Registration will start at 8:30 followed by a field tour. Studies can also be viewed at your own pace. Field day topics will include new corn and soybean products, waterhemp management, and cover crop trials. To register via email or for more information contact Alyssa Essman at essman.42@osu.edu.

    Issue: 2023-18
  2. Winter Annuals

    Early Spring Weed Identification

    Author(s): Alyssa Essman

    Winter annual, biennial, and perennial weeds are starting to become more noticeable up as fields green up across the state. Identification of these species can help in planning for spring burndown programs.  

     

    Issue: 2023-07

  3. Weeds University Set for Statewide Programs

    Author(s): Ken Ford , Author(s): Sarah Noggle

    OSU Extension invites crop producers, CCAs, and agribusinesses to attend a regional 2023 Ohio Weed University on Wednesday, March 1, or Friday, March 3 from 9:00 a.m. to 4:00 p.m. at locations across the state.

    Locations will include:

    Issue: 2023-04

  4. The War Against Weeds Podcast

    Author(s): Alyssa Essman

    The War Against Weeds Podcast is back for season four! We’re in the midst of harvest which means endless cab hours, what better time to start a new series? Tune in to hear Sarah Lancaster (Kansas State University), Joe Ikley (North Dakota State University), and me as we chat with weed science and agronomy experts to discuss all things weed control.

    Issue: 2022-36
  5. Crestleaf Groundsel

    Another Article about Fall Herbicides?!

    Author(s): Alyssa Essman

    In the past couple of weeks, Mark Loux and Mark Sulc gave us some good reminders about the value of fall applied herbicides.

    Issue: 2022-35

  6. Wheat Herbicides, Cressleaf Groundsel, Enlist - Weed Management Odds and Ends

    Based on the current price of wheat, some wheat fields with less than ideal stands are being taken to yield instead of terminated.  A uniform wheat stand usually provides most of the weed control that’s needed.  Weeds will likely be more evident and in need of control where stands are thin or erratic.  We have been told wheat herbicides are scarce, so growers might want to check with suppliers soon.  Reminder that any product containing dicamba has to be applied prior to jointing. 

    Issue: 2022-07

  7. 2022 Ohio Weed University

    Author(s): John Barker , Author(s): Tony Nye

    Are you concerned about the effectiveness of your herbicide program?  Want to sharpen your weed id skills?  Not sure which nozzles provide the best control options?  Is herbicide resistance REALLY that big of a problem?  These topics and many more will be discussed at the 2022 Ohio Weed University.

    Issue: 2022-01

  8. Canada thistle rebounds?

    It can be nice to see old friends.  Except when they cause crop and yield loss, refuse to leave after a few days, and don’t respond to chemicals.  A while back we wrote about what appeared to be an increase in populations of dandelions and other winter weeds and made some guesses about why this was happening.  Canada thistle has once again become a problem in some fields in a big way, probably for some of the same reaso

    Issue: 2021-19
  9. Poison hemlock (Conium maculatum L.) and wild parsnip (Pastinaca sativa L.) are combined in this report because these invasive non-native weeds are increasingly found growing together in Ohio. However, the defense chemicals of these weeds are very different and have vastly different modes of action. This is important to understand relative to management options as well as medical treatments for exposure to these highly dangerous weeds.

    Putting poison hemlock in perspective

    Author(s): Ted Wiseman , Author(s): Allen Gahler

    Poison hemlock seems to be on everyone’s radar more than usual this year, especially in northern Ohio.  We know that while hemlock has been all over southern Ohio for years, it is continuing to spread northward, where new occurrences and observations of it may be engendering concern in the general public and local government. There have also been comments that it seems “worse than usual” this year in

    Issue: 2021-19

  10. Roughstalk Bluegrass in Cereal Grain and Forage Crops

    Author(s): Richard Purdin , Author(s): Taylor Dill , Author(s): Les Ober, CCA

    There is a new and emerging weed challenging cereal grain and forage producers across the state. Roughstalk Bluegrass has taken root in wheat fields and newly established forage stands. This weed has reached population levels high enough to inhibit the harvest of cereal grains, reduce the quality of forages, and crowd out newly established forages.

    What is it?

    Issue: 2021-18

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