DA - we see this too. Not just tire tracks, but also from lawn mower blades. And it's nearly always on clay soil where the turf is not getting enough water. Folks that mow too short, mow parched turf, use dull blades, and mow in the hot sun are just asking for problems. Regarding tire tracks: 1200 pound ZTR mowers are the worst, but we also see it on lawns when the homeowner uses a 21 inch push mower. But what do you do? You can hardly shut down your business just cuz a customer does not properly maintain his property according to land grant university recommendations. We recently got some rain to alleviate this potential problem, but the forecast calls for 90's, sun, and heat indexes exceeding 100 degrees for the next ten days or so. So here we go again.