Scions for grafting should be cut while perfectly dormant and packed in damp moss or sawdust, being careful not to have it too wet. Paper line the boxes and place in a cool place. Cold storage is much better. Scions cut during the winter and placed in cold storage will come out in good shape for grafting in May, or budding during July or August. Where there is danger of the wood being injured by cold weather it would be well to cut scions in November, before severe cold.
Time for Grafting
Wait until the new growth is well advanced or nearly in full leaf, which is about May 1 to 10, in this latitude.
Methods
Use either the wedge graft or the bark graft. We have had equally good results with each. If any difference it is in favor of the side or bark graft which we prefer because it does not split or mutilate the stock, there is not the chance for decay, and the wounds heal over much quicker. On limbs three to four inches in diameter put in three to four grafts.
Cut the stubs back one to two inches below where they were cut when dormant so you may have a fresh clean cut. Pare the rough bark off until you have a fairly smooth surface for three inches below where the limbs are cut off.
Side or Bark Grafting
For side or bark grafting split the bark with a sharp knife for about two inches where the graft is to be set. Cut your scions with about two buds. Slope the scion all from one side with a long slope so it will fit well to the wood or cambium layer; then trim off a little of the outer bark on the outside lower edge of the scion, just enough to expose the cambium so it will come in contact with the inner side of the bark on the tree.
Wedge Graft
If the wedge graft is used, take a long bladed knife (a corn knife will do) set it sloping on the cut off stock and make a clean cut through the bark first so it will split straight, then raise the handle of the knife and drive the blade into the wood, splitting it as deep as needed, depending on the size of the scion and insert a wooden wedge made from some hard wood. An old broom or hoe handle is good, tapering the wedge from both sides, leaving it thick in the center so it will come out easily after the graft is set by simply tapping lightly from first one side and then the other. In cutting the scion slope from each side with a long slope to fit the split in the stub. The outer edge of the scion should be somewhat thicker than the inner edge so that when the wedge is taken out it will be held firm. Be very careful to see that the cambium of the scion and tree meet on each edge of the scion. Pack all large cracks with tissue paper and wax thoroughly.