different strands of bermuda?
I'm not an expert on Bermuda grass specifically, but I'm pretty sure that flowering (aka inflorescence of Bermuda grass) is just part of the normal way that it goes to seed and spreads. I don't know if there's a way to prevent it from happening other than cutting it often enough, and to a height, that shows less stalks. Do a Google search for inflorescence of Bermuda grass and check some college / university web sites and you may some something helpful.
I am a little more versed in Kentucky Bluegrass, and I've noticed that it goes to seed at a much taller height when it's thick and healthy, which sounds like what you've noticed in your front vs rear yards. Do you bag your clippings or mulch? Maybe mulching would let the seeds from the flowers grow the lawn thicker? It's also possible a little more feeding between the TruGreen treatments (such as Miracle-Gro) may help, but that is just a guess.
Last edited by pucks101; 06-13-2012 at 02:27 PM.