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Turbulent Weather Highlights Needs for Application Flexibility

June 7, 2019
mature lambsquarter

If you’re frustrated with this year’s planting season, you’re not alone.

We’ve detailed the turbulent weather that growers in the Midwest have dealt with so far this season. Unfortunately, adverse conditions continue for some. Heavy rain and snowfall in early spring has been followed by even more storms and a recent tornado outbreak across much of our nation’s heartland.

Now, some growers are dealing with saturated fields that have prevented planting. And, to make matters worse, as the University of Illinois Extension & Outreach notes, weed flushes of giant ragweed, lambsquarters and waterhemp have already been seen.

In fields where planting is just getting underway, these weeds have had limited to no competition, and it doesn’t take long for them to get out of control.

Situations like these make it more important than ever to use effective weed management practices for corn. In this instance, that means a flexible residual post-emergence herbicide.

Acuron® corn herbicide can be used post-emergence up to 12” corn, and Halex® GT corn herbicide can be applied up to 30” corn, providing residual control until crop canopy. At this point, with weeds emerging before many growers have had a chance to apply a preemergence herbicide, effective post-emergence applications may be the only way to control weeds and protect corn yields.

It’s also critical to use full, labeled herbicide rates, and, especially for areas where weeds are already emerging, manage weeds before they reach 4” in height (or about the size of a soda can). Herbicide resistance continues to be a primary concern, and using half or cut rates – or applying herbicides to weeds that are already too tall – may not kill the weed. Half and cut-rate applications increase the likelihood of not effectively controlling weeds, especially resistant biotypes, and may lead to weeds going to seed and making deposits into the weed seed bank.

Visit ResistanceFighter.com to learn more about managing tough and resistant weeds.

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