Ken from Bartlett, Tn writes
Simazine 4L Herbicide is labeled to control poa annua (annual bluegrass) and is safe to use on Bermuda grass; however, this product is a pre-emergent only. Simazine does not kill exising poa or other weeds. You could use Negate 37WG or Image Kills Nutsedge for post-emergent control of poa annua in Bermudagrass.
Answer last updated on: 03/28/2021