I mentioned this to Owl a few weeks back. The problem was the trees flowered when it was still cold, resulting in zero insects to pollinate them. Fortunately we have a variety of mango trees and some have flowered later and are now producing fruit.
But yes, our crop will be way down this year.
On the plus side, our Indian plum tree has produced some fruit after I erroneously assumed the flowers had died. And the lychee flowers are being pollinated okay