Wheat Weeds

C.O.R.N. Newsletter Articles

  1. Marestail (Horseweed)
    Author(s): Mark Loux

    A uniform wheat crop can provide effective suppression of marestail, especially when combined with some in-crop herbicides.  It is nonetheless typical for marestail plants to be evident after the wheat is harvested, and these should be controlled prior to double crop soybean emergence.  There can be a couple types of marestail plants to deal with in this situation:  1) small ones that were lurking near the base of the wheat plants, which are largely not disturbed by the combine; and 2) larger ones that may have been present in areas of thin wheat stand, which get cut off by the combine and

    Issue: 2018-21
  2. cressleaf groundsel flowers
    Author(s): Mark Loux , Author(s): Jeff Stachler

    It’s definitely a big year for cressleaf groundsel (Senecio glabellus), that yellow-flowered weed that can be seen about everywhere right now.  While it is most often found in no-till corn and soybean fields that have not yet been treated with burndown herbicides, there seems to be an above-average number of wheat and hayfields and pastures with substantial populations.  Cressleaf groundsel can be identified by its hollow and grooved stem with a purplish color, and yellow sunflower-type flowers.  It is a winter annual that emerges in late summer into fall, and can infest late-summer seeding

    Issue: 2016-13
  3. There are three excellent field day opportunities being planned for small grain producers across the state. The three days cover a variety of production issues, nutrient management practices, and small grain uses. Locations are in Pickaway, Wayne and Wood Counties. Be sure to check out the location closest to you! For detailed information visit: https://agcrops.osu.edu/events

    June 1, Pickaway County, On-Farm Wheat Field Day, 19076 Florence Chapel Pike, Circleville at 9 am.

    Issue: 2016-11
  4. Winter wheat progress 3-7-16
    Author(s): Laura Lindsey , Author(s): Ed Lentz, CCA , Author(s): Pierce Paul , Author(s): Mark Loux

    On March 16 and 17, we visited our wheat trials in Clark County and Pickaway County. Both locations were at Feekes growth stage 5 (leaf sheath erect). In northwest Ohio, wheat is at green-up to Feekes growth stage 4.

    Generally, Feekes growth stage 6 occurs in southern Ohio during early April; however, with abnormally warm temperatures, Feekes growth stage 6 (jointing) may occur sooner. To evaluate wheat for growth stage 6 follow these steps:

    1- Pull, or better yet, dig up, several clusters of tillers with roots and soil from multiple locations in the field;

    Issue: 2016-06
  5. Author(s): Mark Loux

    This summer’s weather caused problems with weed control in some areas of the state, and this certainly includes our two major weeds, giant ragweed and marestail.  As we move through harvest and into the season of wheat planting and fall herbicide application, be sure that strategies effectively address marestail since there is an abundance of marestail seed blowing around.  The larger plants evident now in wheat stubble or above the soybean canopy may be producing seed, but these are not the plants that will overwinter and cause problems next spring.  The small marestail plants that have ju

    Issue: 2015-29

Publications

  1. 12/2016

    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. 

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