FRUIT GETS ABOUT THE SIZE OF A GOLF BALL THEN FALLS OFF TREE. WHAT WOULD CAUSE THIS PROBLEM?
Great Fruit Trees
Certified GKH Gardening Expert
Sudden drops in temperatures, rain or watering fluctuations, disease, pests, nutrient issues and poor pollination are all reasons for bud or fruit dropping.
Some fruit selectively drops also.
This article addresses the issue, in Lemon Trees though the issue is the same.