Palmer amaranth and ivyleaf morningglory management in enhanced glyphosate-resistant cotton
Batla, Max A.
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Cotton is a major crop on the Texas Southern High Plains. One of the main pests associated with cotton is weeds. Some common and troublesome weeds present in cotton include Palmer amaranth, devil’s-claw, and ivyleaf morningglory. Control of these weeds is crucial and information is important to area producers. Studies were conducted in 2005 and 2006 at the Texas Agricultural Experiment Station near Lubbock to 1) evaluate glyphosate timings in combination with preplant incorporated (PPI) and postemergence (POST) residual herbicides for improved Palmer amaranth and devil’s-claw control, 2) evaluate glyphosate application timings for Palmer amaranth competition in enhanced glyphosate-resistant cotton, and 3) evaluate glyphosate rates in combination with preemergence (PRE) and POST residual herbicides, and mechanical cultivation for improved ivyleaf morningglory control.