Was a little spendy but very effective. After several attempts to get rid of the Texas Sedge that was quickly taking over my tif419 with other products, I went ahead and tried, was brown by end of day, completely dead 3days after. Tif uneffected, no sign of stress.
I spot sprayed 2 days after a rain event and there was a brief rain several days after spraying. Air temperature did not exceed 90 degrees for 3 days after spraying. It is now the 5th day after spraying and my centipede grass is severely damaged. It is difficult to assess the effectiveness to the product on the target species (yellow nutsedge) due to the damage to the centipede. I sprayed some purple nutsedge, also. At present the purple nutsedge is still green and alive.
Purchased this to get rid of nutgrass and crabgrass since I had a problem with both in my yard. I applied at the minimum rate (10 oz/acre) for application on Bermuda grass. Seemed to work great on the nutgrass. Was turning brown in a week. But not so good on the crabgrass. Crabgrass was my biggest problem. If I had applied at maximum rate (14 oz/acre), it may have done better, but I have 1.5 acres and this stuff is super expensive. One bottle was barely enough to treat my yard one time. Seems to be a good product, but super expensive for the results I got on the crabgrass. I used a 20 gallon pull behind sprayer for application.
This product was very effective in controlling the nutgrass which had been present for years. One spray accomplished most of the control. Total control was accomplished with a second spraying. This was last summer and the nutgrass has not returned.