What kind of fungus do I have
Have little blue spores on the blades of grass. Bug-B-Gon no help, so not a bug. First found the blue spores today-have lots of brown spots too.
Certified GKH Gardening Expert
It could be necrotic ring spot. In the early stages, it can have a blue cast.
Regardless, a fungicide should treat the fungus and help to get rid of it.