Weed resistance may just be one of the most discussed topics at meeting I’ve been attending the last couple years and that didn’t change at Commodity Classic. FMC is one of the companies that has worked aggressively on this issue and I spoke with Ken Smith about it. He told me, “What we have learned in the last ten years of our research is, we can not spray these out post emergence. We have to rely on soil applied herbicides.”
A suggestion from FMC is to adopt their Overlap System. Growers, like the one visiting with Ken in the photo, can find a lot more information about this strategy on the FMC website.
The Overlap System involves: (1) applying strong residual herbicides preplant or preemergence to control weeds early in the season (2) following that application with an early postemergence herbicide that features a different mode of action.
You can listen to my interview with Ken here:
Interview with Ken Smith, FMC