I would like to extend the fall color of my bermuda lawns as much as possible. I haven't done iron applications in the past outside of the 2% that is in the granular fertilzer that I use. I have 3 lawns in particular that have generated me some extra business because they looked so good. I would like these lawns to look extra good for as long as possible. How much difference will a foliar app. of iron make? How long will it last on bermuda? Will it be noticeable and make the lawn stand out? My supplier has Gordan's Ferromec AC, Growth products Xtra Iron 9%, and a couple of Roots products like FE 8, Longgreen, Ironroots. Has anyone used these? TU, do you apply iron in the fall?