Bermuda... I finally used Grass B Gon last year. I sprayed once in the spring and again in mid summer. The Bermuda was gone. Then it creeps and seeds so I have to do it again this year.
The toil involved in removing Bermuda is daunting and all that work does nothing more than control it for a time.. And it will come back if there is a speck of Bermuda anywhere around.
Grass B Gon worked. Now I am going to try Clethodim. It is rated for Irises and can be purchased as a concentrate, very economical.
The Daylily folks mentioned Clethodim.
I just wondered if any Iris growers had any experience with it.