Q.My apple trees have dropped all their fruit
When my trees blossomed this spring I was confident of having a good harvest this year but all the potential apples have now dropped to the ground. One still has three small fruit beginning to grow but the other has none at all. As it was pretty wet during April and early May, I wouldn’t expect it to be drying out and it shouldn’t be lack of pollination as the two trees are only 15 feet apart. Any suggestions?

Certified GKH Gardening Expert
Several things can cause this. Here is more information that can help: http://extension.oregonstate.edu/gardening/node/889