I had a major lesson brought home over the last week for improving pecan grafting success. I made grafts on 2021/06/05 which is very late for this area. Fortunately, I’ve tried late grafting and had some success in the past. This time, it looks like I got 100% takes on 5 rootstocks setting a total of 10 scions. I made grafts with long buds, cleft grafts, and whip and tongue grafts. So far, it looks like all of them were accepted.
The first absolute requirement with pecan grafts is to use only very high quality scionwood. Pick carefully for rapidly growing stems with 2 feet or more of current season growth. Store the scionwood appropriately in a refrigerator to keep it dormant.
So what made such a big difference in this round of grafts? We had a week of incessant rain totaling about 10 inches. Soil moisture levels are exceptionally high. Evaporation has been minimal meaning humidity for a week was in the high to very high range. This seems to be the key to getting high take rates with pecan grafts.
I’ve grafted pear and apple with little more effort than to whittle a stick. Pecan was always incredibly difficult. It is somewhat surprising to get very high success rates like grafting pears.