When the aggressive nature of Palmer amaranth (pigweed) is combined with the limited post-emergence herbicide options in grain sorghum, problems often arise – even when an adequate preemergence herbicide program is used. This article highlights post-emergence herbicide options for Palmer amaranth control in grain sorghum. To see the full version of the article with use rates, recommended surfactants, and plant height restrictions, search for K-State Agronomy eUpdates, June 27th issue.