used the bottle last season on a cast iron fence row. The client did not want string trimming done on or near the fence. The product was used as directed with adjuvant. The product did not perform for no more than 3 weeks for me. The perimeter of the back lawn is bermuda, fescue, and other weedy matter.
The turf was not really manicured, watered or sprayed with other herbicides. It seems that the product ceases to perform if the mower cuts too close to the treated area. The grass resumed growth immediately.
I ended up using glyphosate this year and said to heck with it.