Several post-emergence herbicides are available for control of marestail where spring weather may have interfered with application or efficacy of early spring burndown and/or pre-emergence herbicide applications.
Jason Norsworthy, a weed scientist from the University of Arkansas, will be the keynote speaker at this year's Glyphosate-Resistant Palmer Amaranth Management Field Day on Wednesday, July 10, near Carleton.
On-site demonstrations of herbicides for weed control in corn, popcorn, and soybean and a study on terminating cereal rye before and after planting soybean are among those to be featured at the university's South Central Agricultural Laboratory near Clay Center.
A new dicamba-based herbicide, Tavium, has been approved for use in Roundup Ready 2 Xtend soybean (dicamba/glyphosate-resistant soybean). Like the other dicamba-based soybean herbicides, it requires special training before it can be used.
With flood, cold, and wet conditions in March/April, many producers are facing a smaller than expected window for making their burndown herbicide applications and should carefully consider required planting intervals when selecting which product to use in which crop.