Name: one-eye-luke US.Vet. Texas (Zone 8a) Quitter's never Win
No, if you used grass killer around American Beech trees you should see damage soon to the trees. If you put fertilome over-the-top it will refeed the Bermuda grass stolons and make the Bermuda grass grow.
NOT A EXPERT! Just a grow worm! I never met a plant I didn’t love.✌