Don't lose corn yield to early weed pressure! Tom Barber Corn yield can be lost due to weed competition the first 6-8 weeks after planting depending on growing conditions. It is easy for us weed guys to focus only on pigweed control, but many other weeds, especially grasses can quickly cause early season yield loss if residuals are not used at planting. 4 8 2020 Wednesday, April 8, 2020 12:26:56 PM PDT Corn,Weed Management,Herbicides Early-season weed control in corn comparing a PRE (right) versus no PRE herbicide (left) kmerritt@uada.edu