In a recent report made to the "American Pomological Society," at Philadelphia, I mentioned in regard to the apples grown in Western New York (in one vicinity at least) that they were generally fair, and free from spots or blotches. Much to my regret, I find that many of the best sorts are this season affected with black spots upon them, which not only are on the outer surface but impregnates the flesh of the fruit with a bitter and corrosive taste. It prevails very much, as before said, in the best varieties, and very few are exempt. I have an opinion that it is a disease which is produced in a great measure from the great neglect observable in most all the orchards, in the trees not being properly trimmed. Most all orchards are too thickly planted, for one thing; so much so, that such a density of foliage, when the trees are maturing their fruit, collects and retains moisture that neither the sun or air has sufficient effect to keep off what may truly be called a mildew of unhealthy and pernicious gangrene, which centers on the skin of the apples and very much injures them, both as regards appearance and quality.

I feel so impressed with the importance of the proper pruning of trees, that I wish that a score of practical men were thoroughly versed in the matter and would offer their services to growers of fruit trees, who in turn, I should hope, would employ such ones to trim their trees. It is painful to see such neglect toward trees that might be renewed from year to year by judicious pruning, and the fruit kept good, if not grow better and better.

I merely throw out these ideas in hopes that you will deem it of importance to furnish what you think a preventive. A handsome and fair fruit is as beautiful as a fair and beauteous woman, but the blemishes which I have been speaking of, mars the original beauty which nature gave to the apple and caused it to be so tempting. J. H. Watts. - Rochester, N. Y.

[The development of this parasitic fungus alluded to by Mr. Watts, is due more, we apprehend, to atmospheric influences than to any defective pruning or management. We see it prevails in certain seasons and in certain localities much more than in others. It was scarcely seen in Western New York until a year or two ago, and it is quite probable that next season we may be again exempted from it. The remarks, however, in regard to pruning are none the less worthy of attention, for really there prevails a very great negligence in this particular branch of orchard culture. - Ed].