In harvesting olives from our potted plant we discovered most of the fruit covered by scabby spots. Can anyone explain this problem

Question

and whether this fruit can be saved for food, and can the tree be salvaged?

Answer 1

Without seeing the damage, it could be a number of things. Scale insects can cause scabs. This article will help: https://www.gardeningknowhow.com/plant-problems/pests/insects/what-is-soft-scale.htm

fungal infections can cause the symptoms as well. This article will help you with fungicide use: https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm

This article will help you to grow these in container: https://www.gardeningknowhow.com/edible/fruits/olive/growing-olive-trees-in-containers.htm