Will from Bakerfield, Ca writes
Acclaim Extra Selective Herbicide will not kill poa annua as it is listed as a tolerant grass type on the product label. Because poa annua(annual bluegrass) and cool season turfgrasses such as fescue are so closely related, there are very 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: 04/07/2022
