I also have a dog who is allergic to the lawn. He starts out in about July with pink, sore feet. That will spread as he licks them. Eventually, the hair on his feet fall out. His coat thins. His eyes are red. His mouth raw. He is miserable.
We tried immunosuppresent (sp?) treatment. No luck there. Changing diets, no luck. About the only thing that helps is Wal-Hist. Eventually, we break down and treat him with steroids and anti-biotics. I feel bad for him.
I also avoid using any lawn care products in the back yard. I spot-treat weeds, and use only food-grade fertilizer. I am wondering if it is something other than grass that comes out in the later summer, and maybe some weed and feed type product would knock it out.
I am at a loss.