Robert from Cleveland, Oh writes
If Monument can't be used to Kill Poa Annua in Tall Fescue lawns, selectively, can you recommend a product?
Monument 75WG Herbicide is labeled for Poa Annua control, however, it will harm Tall Fescue. Because Poa Annua and Fescue are so closely related, there are few products that will kill the Poa Annua without also harming the Fescue. The only one we are currently aware of is called Prograss and it is very expensive. Your other options would be to either spot-treat with a Roundup-type product and then reseed with the Fescue in those areas, or you can use a pre-emergent like Prodiamine 65 WDG in the fall to prevent the poa from growing in the first place.
Answer last updated on: 05/23/2019
