Field Evaluation of 2,4-D and Dicamba Formulations on Cotton Response

Research was conducted in 2016, 2017, and 2018 to investigate cotton response to exposure to sub-lethal rates of different 2,4-D or dicamba formulations at the field evaluation level and to determine the effect of presence or absence of glyphosate on results. The dimethylamine, acid, ester, and choline salt formulations of 2,4-D were investigaed. Dicamba formulations included diglycolamine, BAPMA salt, diglycolamine + Vaporgrip, and dimethylamine. Visible injury, cotton height, nodes above cracked boll, and yield were recorded.