mango tree not fruiting
I am located on the outskirts of Bangkok. I have a mango tree that refuses to fruit. here is what I can tell you:
1. 6 years old
2. circa 18 feet high
3. seemingly in good health, no bugs, leaf or trunk issues visible
4. pruned back heavily every couple of years
5. produced around 10 fruits in year 2 I think it was, but all fell off the size of a grape shortly after starting to develop
6. tree 3 doors down the road fruits prolifically. Possibly a different variety but certainly similar.
Anyone got any ideas? I am guessing this is a pruning issue but I am open to ideas from those better in the know.