This will be the last update for the BTEP until spring 2012. I might get one more mowing in and will apply urea winterizer at the appropriate time in November.
This fall my lawn had issues with rust and possibly some other fungus (might be leaf spot). The BTEP plot was not immune, but it is also not uncommon for new KBG to have rust issues in its infancy. Some cultivars did better than others, but none were affected to the point of noticing any diseased blades or discoloration from afar. Here is a closeup of the worst affected area in the Midnight Star plot:
The following are my subjective and unscientific observations regarding Leaf Width, Color, Effect of Tenacity (2 sprays 7 days apart in October at 5oz/acre), and the presence of Fungus (rust and perhaps leaf spot). Keep in mind that the grass is only about 10 weeks old, so these results should be taken with a grain of salt (or potassium
).
LW: Leaf Width – Fine, Medium-Fine, Medium, Medium-Coarse, Coarse
C: Color – Light Green, Medium Green, Dark Green, Dark Blue Green
T: Tenacity Effect (Bleaching) – None, Light, Medium, Heavy
F: Fungus (Rust/Leaf Spot) – None, Light, Medium, Heavy

