The soil fumigant metam sodium continues to play an important role in the management of soil borne pests of potato such as Verticillium dahliae, the primary cause of early dying, and the root lesion nematode, Pratylenchus penetrans. Recent label changes resulting from the re-registration of metam sodium by the EPA have made the application of the fumigant through water applications very difficult due to the requirement of large buffer zones to reduce human and animal exposure to the chemical. As a result, there has been a dramatic increase in the application of metam sodium via shank injection. This method of application is not as efficacious as water applications of metam sodium. This presentation will discuss the most recent research conducted at North Dakota State University directed at improving the efficacy of shank injection metam sodium.