Jaz from Pennsylvania writes
It's Memorial Day weekend and I'm starting to see Poa Annua sprouting like there's no tomorrow. I used Trimec Classic 2 weeks ago and it killed every weed in my yard, poa is coming up fast. I'm in PA with KBG, ryegrass, fescue lawn
EndRun Herbicide with Trimec is a broadleaf weed killer only and will not effect poa annua. The best way to control poa annua in a Kentucky Bluegrass lawn is with pre-emergent herbices before it emerges. After emerging you can really only spot treat with a glyphosate based product and then reseed the areas with KGB.
Answer last updated on: 05/29/2017