WinField United Regional Agronomist Kyle Okke says farmers planning to grow soybeans may question whether or not to use a pre-emergence herbicide in dry conditions. “If it’s going to be dry, will this be worth my money? Will I get enough control out of that? My response is if we get the right conditions, we’ll definitely need these pre-emergence herbicides,” says Okke. “We need any help we can get to keep waterhemp or kochia from getting too large before post-emergence herbicide application.” The level of weed control with pre-emergence herbicides may not be seen if rains do not follow an application, but that doesn’t mean the herbicide doesn’t work. “You may only get 50 percent control, but that’s still 50 percent more control than you would have had if you didn’t do anything at all.”
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