Commented: Is falling citrus fruit specifically "annual"?Low moisture and hot winds in early summer can cause fruit drop. It can be compounded by too little water - make sure you are watering deep and more often than you did in the spring.
Commented: My Dancy Tangerines and Tangelos are dry insideDid your fruit get frozen? Clay soil needs water less often than other types, but underwatering is one of the causes of dry fruit. The other tree not setting much fruit could be from the same cause. O...