Zuzu - Ah, gophers. We don't have those here.. we have prairie dogs and lord helps me if they find my yard. You can't eradicate them.. no matter what you try, they keep coming back! Some ranchers out a bit east use .. uh, let's just say extreme measures and it does *help* the numbers, but not to the point that I would be willing to do what they do (either extreme sport hunting or they pump propane gas down the tunnels, then light a match & run). I'm really surprised mine didn't get black spot.. maybe I don't have Charisma? That is what it was labeled.. but at the same time, I have a RedGold that bloomed white last year.
edit: I just looked at some of the more crappier pictures I have and, sure enough, there's a little bit of black spot on some of the leaves, but nothing really to get excited about. Huh.