- Product Review (submitted on September 3, 2018):
- This product is great for us that hate to have tall fescue patches mixed in with our bluegrass. On the internet the only way they say you can remove it is with Roundup. If you apply tenacity at normal strength to the Tall Fescue patches every 4 to 5 days then it will eventually kill the tall fescue and leave the bluegrass untouched. It takes 3 or 4 weeks to do it. You can not wait a week to reapply because the tall fescue can start to recover in that period of time.