I’ve had a few calls in the last day or so regarding the dropping of leaves from ‘Desirable’ trees. This is an annual occurrence and is a physiological condition we see more pronounced when there is a fast change in environmental conditions as we’ve seen recently with a shift from cool and wet to hot and dry weather. Desirable is more sensitive than many other cultivars to this and many other problems. Last year this occurred in early June but the tree’s foliage/crop development as well as the shift in weather conditions has occurred earlier this year. See last year’s post here for the details:
https://site.extension.uga.edu/pecan/2014/06/desirable-leaf-drop/
