We have older apple trees (est 15 yrs) that produced very heavily in 2013, blossomed in spring of 2014 and produced only a handful of apples. The very same thing happened to our pear trees. The variety of apples and pears are unknown. Any suggestions? Truly appreciate your assistance. JudyC
I can think of three possibilities.
It got hit by a late frost or freeze while it was flowering.
The bees in your area have disappeared and the flowers aren’t getting pollinated.
It got sprayed with an insecticide while it was in flower which can prevent fruit formation (as well as killing the bees that were trying to pollinate it).