I have a new lawn as of sept of 2001. The lawn came up really nice. The first two applications were actually the same 12-4-8 with some sort of pre-m (First app went down on April 2 and second app on May 21. For the record we have had a ton of rain. 22.75 inches since March 1. Now all of the sudden the grass is turning yellow, especially at the tips. What are your guys opinions on this and also the applications being applied. I don't think it is a fungus because it really has not been all that warm (not ideal conditions). It almost looks to me like the lawn is starving, either nitrogen or iron deficient. This same company use to take care of my first house. I use to have to mow the lawn every 4-5 days. Now I go 10 days before mowing. This is what leads me to believe the lawn is lacking nitrogen. any suggestions?