If you incorporated a lot of organic matter close to the planting hole then it could be a transplant problem maybe. If the roots are pot bound and there's an air pocket next to a mat of roots then you'll get some necrosis on the leaves like that. If you think that this could be the issue just use a finer soil in the planting hole and make sure there is good compaction around the roots.
Air pockets are good normally just not right next to pot bound roots. Likelywise compaction is bad generally except when transplanting exposed roots.