DISCOLORED LAWN?

SCOTT: Hey Mike, I fertilize my lawn regularly, every six weeks. I usually put a supplemental application of Milorganite between my second and third application as per your recommendation. 
MIKE: And your lawn looks great.
SCOTT: And yet… now I have some yellow and a bunch of red spots throughout my entire lawn. You diagnosed my lawn with a fungus called “RED THREAD” before, but this time it’s spread thoughout my entire lawn. It seems pretty early for this fungus, no?
MIKE: Well Scott, most parts of Sylvania are on glacial beach sand. And sand has a problem retaining beneficial nutrients. Each time a lot of water hits your lawn, it is flushing your lawn’s nutrients beyond the grasses’ roots system. Other areas in our region have clay or heavy soils. These areas are less likely to develop Red Thread as they hold onto their nutrients.
SCOTT: Similar to our podcast discussion about city tap water.
MIKE: Exactly, and we’ve had more than our share of rain this spring. Sylvania received 1.24 inches above its spring norm. April and May, were really wet months, falling somewhere within 3 to 5 inches of rainfall. Thus, the cause of your lawn dilemma Scott. The fungus that causes Red Thread is called “Laetisara Fuciformis.” It explodes with reddish pink or red fibers in wet cool conditions and affects fine fescue, rye, common bentgrass and bluegrass lawns. These red fibrous patches are very infectious and will eventually spread into 3-to-4-inch patches and turn yellow.
SCOTT: The cool, wet spring has benefited most of our ornamentals like perennials and woody flowering plants, especially the early bloomers. Such as the iris, rhododendrons, weeping cherry, red bud and oakleaf hydrangeas. And even all the lawns looked great.
MIKE: True for a while, until they ran out of nutrients. Even the professional lawn services could not compensate with that much water coming down, mostly at once. All you could do is ask them to come out and diagnose your lawn and suggest what can be done in order to rectify the situation.
SCOTT: You told me that I could wait it out until drier, warmer weather, or I could put a light application of a fertilizer to compensate for the lack of nitrogen to my lawn. Would the extra fertilizing burn my grass? 
MIKE: If the fertilizer application is light enough, possibly half rate, or a low nitrogen fertilizer, it will immediately stop the Red Thread from actively spreading without the risk of burning. This fertilizing will immediately arrest any Red Thread activity and allow you to mow the yellow grass blades out until your next scheduled lawn fertilizing.
SCOTT: So, you’re telling me that I can correct my Red Thread problem by applying a light fertilizer to my entire lawn. So, another application of Milorganite should fit the bill? 
MIKE: Try using a regular lawn fertilizer at half rate. Milorganite is filled with micronutrients but might not have enough nitrogen to change course. Or perhaps a regular garden fertilizer at full rate. This should pull your lawn out of the problem you are experiencing.