. Agriculture of Maine : ... annual report of the Commissioner of Agriculture of the State of Maine. Agriculture -- Maine. 326 AGRICULTURE 0? MAINE. greatest care, is apt to result in injury, and it Is far better to prevent the parent insects from depositing their eggs upon the tree. This is not difficult of accomplishment, as oviposition is practically confined to two months in any single locality, usually June and July. The best preventives are impenetrable sub- stances placed about the trunk and various washes of a repellent nature. For this a few thicknesses of newspaper wrapped rather loo
. Agriculture of Maine : ... annual report of the Commissioner of Agriculture of the State of Maine. Agriculture -- Maine. 326 AGRICULTURE 0? MAINE. greatest care, is apt to result in injury, and it Is far better to prevent the parent insects from depositing their eggs upon the tree. This is not difficult of accomplishment, as oviposition is practically confined to two months in any single locality, usually June and July. The best preventives are impenetrable sub- stances placed about the trunk and various washes of a repellent nature. For this a few thicknesses of newspaper wrapped rather loosely about the trunk and extending about two feet from the base are all that is necessary. This covering should be tied, by preference with cord, which will readily yield or break with the natural expansion of the tree in its growth, and also be tightly fastened at top and bottom and hilled up with earth so that the beetles cannot obtain access to the tree from below. From the top of this covering upward it is best to use some deterrent alka- line or carbolated wash. Any one of several washes in general use against boring in- sects may be used as a deterrent. A good alkaline wash is pre- pared of soft soap reduced to the consistency of thick paint by the addition of caustic potash or washing soda in solution. A good fish-oil, or whale-oil soap, or common soft soap, is often used, and in some cases any one of these is sufficient to deter the insects from depositing their eggs. The alkaline wash may be carbolated, if desired, by the addition of crude carbolic acid, at the rate of i pint to every 10 gallons of the wash. Such a wash not only affords protection against this and other borers, but against scale and fungous diseases at these points, and is, moreover, of positive benefit to the tree. Caustic potash fish- oil soaps are among the best for insecticides. 2. Flat-Headed Apple-Tree Borer. (Chrysobothris fcmorata Fab.). <ar 6 O. Please note that these images are extracted f
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