Fruit Set
Fruit set is the transition from flowers to developing fruitlets. In mangoes, initial set is only the beginning of the crop: many small fruitlets are subsequently shed before harvest. Flower disease, weather, pollination, fertilization, and the tree's resources can all affect the process. Record when fruitlets appear and when losses occur, because a tree that never sets fruit presents a different problem from one that sets well but later drops developing mangoes.