My 4 year old tree is also very badly affected, have read all the recommendations- ie cover in winter etc (which is simply not practical) or spray with fungicide earlier in the year- now too late to do so. Plan to pick off all the affected leaves ( which will leave it nude) and cross my fingers for a new flush of unaffected leaves, though may not get fruit this year. Had peach trees before,not so severely affected, but they recovered well. Not really a hassle once established- worth it to pick your own ripe & juicy peaches instead of the shrivelled, hard bullets from supermarkets that taste like raw turnip!