I should feel obliged if you, or any of the correspondents of the ' Gardener,' can kindly give me any receipt to effect a cure of mildew, either on fruit or Rose trees. I begin to think the best is to cut down the tree, and consign it to the rubbish-heap; for I find a tree once badly attacked is liable to a fresh outbreak for years after. Dusting with flower of sulphur, or washing with tobacco-water, are by no means cures. Mildew generally commencing on the under side of Rose-leaves, for instance, is most difficult to get at with sulphur. I have been troubled very much with it on forced Roses; and my outdoor Roses, which I never remember seeing in finer and healthier foliage than at the present time, are here and there showing signs of this pest, which spreads like wildfire if not daily looked after. I should be glad to hear of anything more effectual than sulphur, the old remedy.

[We will be happy to hear from our correspondents on this subject. - Ed].