Okay, I'll try to make this one of my shorter msgs. I planted my back yard 4500sqft on memorial day. Mostly a fescue mix her in SE Michigan. 1. 3 weeks ago, applied Lesco Momentum to get rid of lots of weeds that I must have brought in with the new soil. Weeds are now gone. Also sprayed the front yard, which had been well established years ago. 2. I'm walking around the yard and have orange/yellow dust all over my shoes. This is only in the back yard, even though I sprayed both. So, I'm guessing its not from the pesticide app. 3. I've been told it's probalby rust. However, can't get it to rub off onto my figers. Some of the grass has yellow/orange spots on it, from top to bottom of grass blade. I've been told its probably rust....but I'm confused why I haven't gotten it on my fingers....also I thought that rust only affects the tops of the blades.. Please help with possible Id's (if not rust) and cure/treatment. Thanks in advance....sorry no pictures.