Dan from Crown Point, In writes
We do not carry a product that will take Fescue out of Kentucky Blue Grass. Unfortunately those grasses are so closely related that you cannot selectively remove the fescue with any product that we are aware of. Your best option in this scenario is to kill the fescue with a Roundup Quikpro (glyphosate) product and then re-seed with your KBG.
Answer last updated on: 04/16/2019