The last two years, we have made 2 blanket applications of simizine in the winter, one in November/December and another in January/February. The following spring, we notice the bermuda lawns are in OUTSTANDING shape...usually not a weed anywhere to be found. But the st augustine is really struggling. It is slow to break dormancy, it is dieing in patches. Conclusion: Simizine is just too harsh for st augustine in north Texas, where it is really too cool for st aug to begin with. Being in the unique situation of having two tanks on the truck, each with their own hose reel and pump, next year, we intend to have two different formulations on the truck. One will be simizine, which we will use 95% of the time to treat the bermuda lawns. The other will be Aquacap/Pre-M, which we'll drag a hose and treat the st augustine with. 2 Questions: 1.) 99% of my competitors only have one hose reel on the truck. If you are forced to go with one tank mix for ALL lawns, do you run simizine all winter and deal with pathetic st augustine in the spring? Or do you run something else and deal with poa annua in the spring? 2.) Is there a better pre-emergence than pre-m for dormant st augustine in north Texas? We are particularly concerned with preventing poa annua in the st aug. Should we be considering dimension or another chemical as opposed to Aquacap/Pre-M? Before purchasing the spray rig, we used Lesco 0-0-7 with Pre-M and the results were unacceptable. Thanks for any advice, Can I Mow Your Lawn?