Looking for all your expert advice. I've been using regular 2-4D for the las couple years at the new house but I can't get control/rid of the clover and chick weed. I've been doing a lot of research on differant chemicals and come to find out 2-4D just isn't powerful enough to kill of either of these 2. I'm looking at either Trimec 899 or crossbow. From what I've read crossbow seems to be the best total war on tough weeds. Either way what are your thoughts? Spraying about 3 acres.