Cotton growth may be compromised by season long infestation of noxious weeds. Palmer amaranth (Amaranthus palmeri) is the most common weed in Texas cotton and is also present throughout the Southern U.S. Therefore, it was chosen as a model specie for this study to examine competitive effects with cotton. Palmer amaranth can generally be controlled by PPI and PREAndre herbicide treatments, however recent developments have now made postemergent control possible on an "as needed" basis. Therefore, a study was conducted to establish the competitive effect that Palmer amaranth has on cotton growth and development.