1. Baird, D. D. , R. P. Upchurch , W. B. Homesley , and J. E. Franz . “Introduction of a New Broadspectrum Postemergence Herbicide Class with Utility for Herbaceous Perennial Weed Control,” in Proceedings of the 26th North Central Weed Control Conference (Champaign, IL: Weed Science Society of America, 1971), pp. 64-68.