 Tests can identify pigweed and detect resistance to two sites of action that are currently available at the Genotyping Center. And results can be available within a matter of hours. To learn more about Palmer Amaranth testing, visit genotypingcenter.com. From the Williston Auto Studios, this is AM 1090 and 92.7 FM, KTGO, Tioga, North Dakota. Find new roads at Williston Auto.