Turf diseases has begun to flare up with the May rains and may be having an impact on your lawn. The two primary culprits right now are Red Thread (Laetisaria fuciformis) and Leafspot (Helminthosporium). Red Thread is a foliar disease that affects the topgrowth of your lawn, but will not cause permanent damage. It appears as pale spots or areas which will vary in size and can be rather unsightly. These may have a red or pinkish tint and, upon closer inspection, will show red strands and/or pink cottony growths of mycelium on the tips of the grass.