According to the latest USDA Crop Progress report, some 2% of corn has been planted in the week ended April 4, in line with the 2% planted in the same week last year.

Despite potential risks, many growers continue to plant corn at depths less than 1.5 inches, as the perception is that corn will emerge more rapidly due to warmer soil temperatures closer to the surface, says Ohio State University Extension.

A combination of Gramoxone and atrazine followed with another application of Gramoxone 10 days later is the only option for terminating ryegrass that escaped burndown, says University of Tennessee Extension.

Avoid the temptation to plant shallower to avoid placing the seeds in wet soils or to get the crop to emerge quicker, as corn roots may not develop properly when planted too shallow.

Here's a UAV video shot out on strip-tiller Kurt Wessels' farm in Kesley, Iowa, as he was wrapping up corn planting last week. The footage was provided by Jared Schrage.

What are some good options to control ryegrass with a short turnaround to plant back to corn? When addressing this question we have to realize that some of this ryegrass is likely glyphosate-resistant (GR). Though we do not have it officially confirmed at this point, I am confident from the last couple years' field observations that Tennessee does have a few fields with glyphosate-resistant ryegrass.