Evaluation of Multiple Brake Tank Mixes for Residual Herbicide Efficacy with and without Pre-Plant Incorporated Valor

This trial compares the weed control of various cotton-compatible residual herbicides, including Brake, Cotoran, Caparol, Warrant, and Dual Magnum, with and without the addition of Pre-Plant Incorporated Valor. Percent control ratings of Palmer amaranth, tall morningglory, and barnyardgrass were taken weekly, with an average of nine percent greater control of Palmer amaranth achieved in plots not receiving Valor PPI. Tall morningglory saw an average of eighteen percent greater control according to the first two weeks of rating for plots not receiving Valor. For plots receiving Brake, based on the first two weeks of ratings, Palmer amaranth control was increased by fifty-six percent over plots not receiving Brake. Yield data was not taken in this trial.