Barry Gatzke got wise about herbicide resistance when it became a reality on his farm near Belbutte,Saskatchewan about 10 years ago. He always had good control of wild oats in his wheat, but one season they just kept coming.
“It started in patches in the field,” he recalls. Some farmers may have assumed that it was a second flush of weeds brought on by the growing conditions, but Gatzke knew better. “I had a chem rep come out and he took samples of the wild oats to test for herbicide resistance. They came back positive for Group 1 resistance.”