Some Factors Influencing Grafting Success with Avocados

Experience with tip grafting avocados has shown that there are distinct seasonal differences in success. Grafts made during the winter and early spring months, especially in January, February, and early March, are nearly 100 per cent successful, while in late spring, summer, and early fall the percentages are often much lower. This is especially true with certain varieties. For example, results in the summer with Hass are often poor, but under the same conditions Fuerte may graft fairly well. Not only are the percentages lower in summer, but growth of many of the scions is poor compared with winter grafts.