I have a subdivision a couple towns over where we do around 30 yards. Of these, probably 25 have sever yellowing after the crazy hot spell we had and constant watering. I received these lawns from a friend of mine who did the applications on most of them for about 5 years. This is not specific to my lawns, Trugreen lawns, or any other company. I have lawns in here that are deep lush green, and one road over they look like piss, literally. This will clear up in a month or so, but for now it's embarrassing. Here are a few pics. This is KBG, sandy soil, around the IN/MI line. It is more prevalent on lawns that... -Water more often during hot temps (no browning or thinning out with drought) -Raise mowing heights in summer as instructed -Do not display rust stains on sidewalks, fences, house, etc. (I noticed that every house that has rust stains on the curb or sidewalk, has a dark green lawn. I talked to a homeowner who said when they built the house the builder said some of the first homes built had a bad iron problem, so they were drilling wells deeper to hit a different vein. The oldest houses in the neighborhood are the ones with the best lawns. Coincidence?) The people who do what they're told in regards to mowing, watering, fertilizing, etc. seem to be the ones paying the price. The lawns that are scalped, burnt up a month ago, are now green. The previous company (good friend of mine) fought this problem for several years. He tried various iron applications and as expected, everything was a temporary fix. The univeristy extentions offer little guidance and have no answers. They either are out of touch or don't have a solution. We are not the only company fighting this so I know there has to be a solution somewhere. Any ideas.