Fruit trees may drop small, undeveloped fruit in June. Finding a number of small fruits on the ground can cause concern all fruit will drop but this will not happen. For the most part, June drop is a good thing. Instead of growers having to manually thin fruit, the tree does some of it.
Why does some fruit drop and not others? Dropped fruits may not have been fully pollinated. Without complete pollination, they won’t develop normally and drop off. With rainy weather, pollinators may not have been as active this spring. And its important not to apply insecticides to trees during blooming.