Texas Panicum Control

Mark VanGessel, Extension Weed Specialist; mjv@udel.edu

In 2011, there were a number of fields with severe infestations of Texas panicum in corn and soybeans. Texas panicum is a grass species that needs to be controlled with postemergence herbicides. UD Weed Research program currently has trials for control in both corn and soybeans, so local data is limited. Based on research in the southern US, options in corn include Accent, Laudis or Impact. These products will provide some residual control, which appears to be adequate for full-season control. Glyphosate or Liberty, which provide no residual control, often require two applications for full-season control. Options for soybeans include glyphosate or Liberty (possibly requiring two applications) or postemergence grass herbicide such as Select, Assure II, Poast, or Fusilade.

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