Mine is a non spray garden and Blackspot doesn't seem to be a problem. It is in an area where the peacocks eat all of the lower leaves so maybe their cleanup is the answer.
I've worked at gardens with peacocks before and they are indeed beautiful but destructive, they seem to favour yellow flowers especially crocus and narcissus. They taste like dry tough old turkey, not worth eating. Guineafowl on the other hand are not so destructive to plants and are very adept at getting caterpillars and aphids. But, as Margaret says they do make the most awful racket, however they taste so delicious that compensates a little for their noisiness.
I looked up Guinea fowl: "Guinea fowl, also known as pintade, faraona or African pheasant used to be a wild bird; it is now mostly farm-raised. With striking white spots on its gray feathers, a mature Guinea fowl will be similar in size to a pheasant, slightly smaller than a chicken." Pheasant meat is so sweet and yummy .. my brother hunts them in Michigan (on his 30+ acre land). My Mom made pheasant soup and it's much better than chicken.
Maggie Beer does some guinea fowl recipes. I threatened my neighbour with them, when her guinea fowl kept tapping on my windows at first light, and decorating my veranda.
I live in the middle of pheasant shooting estates these creatures are everywhere!, my neighbour's dogs are trained to pick up the birds that the guns have shot. Pheasant curry is very good, I also make snitzel, hammering out the breasts thinly and coating in bread crumbs - yum! From November to February there is always a brace of the hanging in my back porch.
