Fierce combines pyroxasulfone with flumioxazin, the active ingredient in Valent’s Valor. Farmer Lance Panzier of Waltonville, Ill., tried Fierce on his 2013 soybean crop because herbicide-resistant waterhemp has become a major problem for him. “We have to be proactive to keep it down,” he says.
Panzier sprayed Dual with glyphosate as a burndown and applied 3 ounces per acre of Fierce immediately after planting soybeans. He applied Roundup and Flexar or Roundup and Liberty, depending on the soybean variety, 21-28 days after planting.
“Fierce was awesome on the waterhemp,” Panzier says. “It held down the waterhemp for the entire season. A lot of growers in the area who did not use Fierce or another product with long residual had to go back in with Cobra for the escaped weeds.”
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