Don from Houston Texas writes
Unfortunately, Bermuda grass is so closely related to St. Augustine grass that there is nothing that will remove Bermuda from St. Augustine and not hurt the Bermuda as well. In your situation, it is recommended to spot treat the Bermuda with Round Up and kill it directly, and then replant St. Augustine in those areas. We do carry some professional round up products: http://www.domyownpestcontrol.com/nonselective-herbicides-c-188_408.html
Answer last updated on: 05/14/2015