So normally we do not see the problem unless we don't spray. Also, usually only the nuts on the lower limbs are affected. If I were you I would make a fungicide application with my casebearer spray. This will probably take care of the problem, but if you see some show up later make another application. Products containing Benomyl are most effective.
Rootstock is a stuart and scion is a chocktaw.
This is the fourth year it has beared. The only spraying I ommited was for pecan husk scab. The nuts that drop do show some scab on them but look healthy and have plenty of moisture in them. I have a water well 19 and a half feet deep. I don't think so since we live in such a hot climate.