Why are fig fruit drops?

fig fruit

Overripens, lack of pollination, high humidity, disease, stress, or nutritional deficiencies can all cause fig fruit to fall from the tree. When the fruit becomes overripe, it may fall off prematurely. The fig may drop if it was not properly pollinated. 

Due to fungal infections, high humidity can cause fruit to drop. If the tree is infected with a disease (such as fig rust, Botrytis, or powdery mildew), it may drop its fruit. 

Finally, a lack of nutrients in the soil, particularly calcium and magnesium, can cause the tree to drop its fruit. Pruning mistakes also contributed to fig drop.