I usually talk to the guy who sprays at the power plant where I work. I can't do it, conflict of interest. The front lawn is 4 acres of common bermuda. The LCO puts out 2 qt. per acre of 2-4d, Simizine and Pendimethalin for round 1, he did round 2 yesterday which was 2 qt. of Triplet, 2 qt. Pendimethalin and 1 1/2 qt of MSMA per acre. There wasn't but maybe 1 weed per 2000 sq. ft. I asked applicator wht they used so much 2-4d and he said that they like to put out at least a quart per acre of 2-4d every round because it is cheap and it reduces call backs. Common bermuda must be the toughest grass on the planet.