All: I gathered up your observations/suggestions and forwarded them to my Penn State guy. It seems you were all right. I just was not getting it. My thanks for the help! Here is the response(s) from Penn State:
Crist: It may be cultivar related and not fertility related. Consider an application of Milorganite the next time you fertilize. It has iron and other micronutrients that may enhance greening………..
Sent: Tuesday, September 20, 2011 8:37 AM
To: Crist D. Clapper
Subject: RE: Turf Question(s)
Crist: The photos show a couple of things:
1) The dark turf appears to be Kentucky bluegrass
2) The light turf which appears shiny in the photograph appears to be perennial ryegrass
3) If you look at the tip of the cut leaf blades in both photos you will notice that the edges are more ragged in the light turf than the dark turf. Perennial ryegrass is tougher texturally and requires that the mower blades be sharpened very frequently. Leaf blades that are tattered are more susceptible to disease.
4) Both photographs contain some grass plants which are displaying disease symptoms. Fungicides may help alleviate the symptoms.
Blair County Extension Director &
Area Commercial Horticulture Educator
Penn State Cooperative Extension