Much has been written about this destructive insect, and many plans have been adopted to prevent Us ravages on the Plum,and other smooth skinned fruits. Some prefer paving under the trees; others planting in hog or poultry yards; many use salt, ashes or sulphur, scattered over the ground around the trees.

The first method has been adopted by Mr. Long worth, and others, in Cincinnati, with eminent success, but in the country it is not found so effectual. The other modes, so far as my observation and inquiries extend, have not been successful.

The plan I pursue is a very simple one; Destruction - shaking off the insects from the trees on sheets, in the morning and evening, and killing them. This method w;is proposed many years ago, by David Thomas, one of the best practical horticulturists in Western New-York, and has been adopted by me from the recommendation of my friend Doct. Mosher, for the past eleven years. Since that period, I have saved my plums seven years out of the eleven; the frost destroyed them in blossom four years. I have never failed to secure at least half a crop,- on an average, and on some of the trees more than they should have been allowed to bear. To make this plan effective, the plum trees should be planted by themselves, near the house or bam, and if in a paved, or hard smooth yard, so much the better; if in grass, keep it mowed down close; gather up the injured fruit as it falls, and throw it to the pigs. When the trees are young, a sudden blow with the hand will bring down the insects; when old, saw off a lower branch, leaving a stump of 3 or 4 inches, to be struck with a mallet, for the same purpose.

It may be objected that the crop is scarcely worth this trouble, but it requires less time than would be supposed by those who have not tried it; a few minutes in the morning and evening will be sufficient to protect a dozen or two of trees. I have now 36 in bearing, and I find the trouble less than I anticipated. Those the frost spared this spring are now loaded with fruit.

The curculio commences its ravages when the plum is first formed, and continues until the latter end of July. During all that period, in fair weather, they should be shook off early in the evening and destroyed. Perhaps early in the morning alone might answer. The insect flies most at night.

This "shaking system" as it is termed, has been sneered at by some who have felt disposed to be witty on the subject, but I must confess I cannot find a more practical remedy. We destroy caterpillars and many other insects found depredating on our fruit trees, and why not the curculio? To be sure it requires labor, and so does everything else about the orchard, if you want healthy fruit trees and good crops. For my own part, as an amateur cultivator, the care of fruit trees has always been to me a delight-fnl hobby.

To watch their growth from year to year - to cultivate, prune, and train them - to observe the effects of experimental treatment in culture, in grafting and budding - to gather and test the first fruits of new or famous varieties - and to be enabled to present to friends, splendid specimens of the finest fruits in their seasons, are pleasures that richly repay the toll of the amateur, to say nothing of the health and cheerfulness, obtained by such innocent relaxations from the cares and anxieties of ordinary business pursuits.

Those who cultivate the plum for market, might possibly And the destruction of the cur-culio by this method, too expensive where labor is high; thin, however, will depend on the valqe of the fruit where sold. R. Buchamab. Cincinnati, Ohio, Aug. 13, 1852.