Several factors have slowed herbicide applications across the Midwest.

In Minnesota, extension crops educator Dave Nicolai says a cool, wet start to spring limited planting until the first of May.

“So there’s been a lot of hours put in in terms of planting corn, I mean we’ve had a rapid increase in planted acres across the state. So then it becomes a problem in terms of how far behind the sprayer is from the standpoint of pre-emerge, whether it’s the farmer themselves or a custom application that’s being done.”

He tells Brownfield windy conditions have impacted post-emergence spraying.

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