Grafting peach and plum
Collect scion wood from the desired tree while dormant in late February or early March and store until spring propagation time. Optimum scion wood diameter is 3/8 to 3/4 inch; 1-inch diameter is maximum. Select healthy, 1-year-old wood with prominent, well developed buds. Label all propagation wood by cultivar name and place it in a container with moist paper towels. Polyethylene bags make excellent storage containers. Store the wood in a refrigerator at 32 to 36F.
The best time to graft is April to mid-May when the rootstock is actively growing, the bark “slips” freely and leaflets are 1/2- to 3/4-inch long. Take the scion wood directly form cold storage and use immediately. Do not let the scion sticks dry out during grafting procedures.
You can find additional information on grafting athttp://aggie-horticulture.tamu.edu/earthkind/landscape/plant-propagation/the-four-flap-graft/