Well, I posted a thread about a wekk or 2 ago asking what this grass was. I was told Dallis grass by a few. I was thinking creeping Signalgrass. I assume the other posters are right that is it Dallis. Well, I had sprayed all my accounts with Q4 before I knew what it was. The Q4 label does list Dallis but indictaes that it MAY need to be reapplied. Well, looking at this stuff the whole "MAY" is out the window with me. Im not wasting my money. The Q4 HARDLY even did anything. A slight purple after 9 days and that's it. I am going to have to go back in August in preperation for aerating/over seeding and kill this stuff. I'm angry at how little the Q4 did. If in fact it is labled for Dallis and a second app MAY be needed, don't you think more damage should have been done? What would be something to use to knock this out? Wish I could still use MSMA. Here are some pics after being sprayed 9 days ago with Q4 plus at 3oz/gal with surfactant at 1oz per 3 gal. The first 2 pics are of the grass after being sprayed at the above rates. The other pics are up close views just to see if its anything besides Dallis.