What concentration of milk were they using? That's contrary to what I've been hearing. Margaret L >Hello, Margaret -- I made a special trip up to Canandaigua Lake >(about 300 miles) to the Sonnenberg Gardens, just a few years ago, >to investigate their special project of using milk to control the >mildew on their roses. It was a trial instigated by Cornell Univ., >and I went as a Master Gardener (trained by them). > >What I found was a catastrophe. Upon investigation, the bottom >line was that all roses must be sprayed every 3 days without fail, >in order for the milk solution to have any benefit -- and this means >if it doesn't rain! Ain't nobody around with that much time >available, apparently, to make the product work. > >Penny, NY