In passing a fine young larch a few moments since, I discovered the first appearance this year, of an insect which has infested the same tree for the two previous seasons. It is a small, downy bug, about the size of a pin's head, resembling somewhat a very small mealy-bug, but instead of fortifying itself in the axils of the leaves, as is the custom of the latter pest, it is spread abroad upon the young leaves, which are just attaining their growth. The tree does not appear to be injuriously affected by it, but has a very unsightly appearance, being, before their disappearance, (which will take place in a few weeks,) quite studded over with these white specks, and looking somewhat as if it had been exposed to a small snow storm. What is the insect and the remedy?

A few years since the same, or a similar insect, appeared upon the balsam firs, of which there are some fine specimens in the vicinity, and infested them to such an extent, that the branches most affected were quite whitened with them. Of late years I have seen none of them, however, and am inclined to think that they disappeared as they came - on their own responsibility. June 25th. Jno. B. Eaton.