I cant seem to kill this stuff. I'm using par III which is mecoprop, 2,4-d and dicamba at the recomended levels. I have sprayed and sprayed again and the best that I seem to get is a few burnt leaves and thats it. Its really starting to take over a couple yards but I just cant kill it. Any suggestions? Being in Canada, I cant get a lot of the stuff that most of you guys are using so if its not to much of a hassle, active ingredients would be very helpfull.