Alfalfa leaf spot disease

I noticed the alfalfa regrowth where I cut first cutting almost two weeks ago was looking yellow and kind of sick so I stopped to take a closer look. The leaves are covered in small dark spots and are falling off. All new growth is affected. Will this clear up on its own or do I need to spray something to clear it up so it doesn't stunt the second cutting? It has been like this for about a week and is looking worse. Regrowth is about 6" tall.

Hayden



Alfalfa leaf spot disease