Hale can knock off the blossoms and fruit when it is small and it will not produce any fruit that year.
If you trim the limbs of some fruit trees they will not produce that year.
I have an apple tree that I have been trying to get it to make good apples for 18 years. I have read all the information I can find and done all the things that are suggested but nothing has worked. Books say, do not fertilize an apple tree it has surface roots and fertilizer will kill the roots. Books say to mulch the tree with a foot of mulch it will hold the moisture that is what the tree needs. Books say the trees need lots of water. I have done everything the books say and everything I read online and nothing has worked. If my tree makes apples they are always the size of a golf balls and as hard as wood and they never get ripe.
Last summer I decided I would do what I think the tree needs, forget what the experts claim works best. If the tree produces no apples this time I will cut it down. I bought a 50 lb bag of Urea 46/0/0 and a bottle of fruit tree spray. Every Sunday afternoon I sprinkled a pint of Urea on the ground about 5 ft radius around the tree and watered it to dissolve the Urea into the ground. I also sprayed the tree with the fruit tree spray. September I had ripe red apples the size of tennis balls and some larger than base balls. I picked 14 five gallon buckets heaping full of ripe red apples. That is 70 gallons of apples, probably 8 or 9 bushels of apples. I canned apples in mason jars, made juice with my juicer, made pies, and jelly too.