Our coconut trees have been flowering but the fruit stubbornly refused to form! I heard about a rather weird remedy used in India to make coconut trees fruit .... knocking nails into the base of the tree!
At first I was a bit scheptical but tried it on one tree. After a couple of months we have quite a lot of coconuts! If you have a fruit tree that refuses to bloom, you can try this trick. Nails in trees usually do not cause any damage to the trees. Their self-healing mechanism produces scar tissue to enclose and isolate these foreign bodies.