We learned last year from TREC that to everyone’s surprise bees are mot the primary pollinators of mango flowers.
A few springs ago I had loads of bees were buzzing around my mango panicles and pollinating. My guess is mango panicles and flowers are not that delicious smelling to bees. But if their usual targets are not around during an unusual spring then they will hit the mango flowers.
I don't know if you can still find this on the internet about a dead pig in a Taiwan mango orchard. Attracting flies that pollinated mango trees and resulted in a huge mango yield.
______________________
http://tropicalfruitforum.com/index.php?topic=4041.msg55896#msg55896 ----posted in 2013
Supposedly bees don't pollinate mangoes. But I see them around my mango tree. My understanding is bees don't favor mango blossoms. But my further understanding is they like other blossoms better and they will go to them first. Mango flowers are 3rd, 4th, 6th, 10th on their list but when other flowers are not available they head for the mango trees. Maybe avocados are the same. Within avocados they seem to like your Mexican derived avocados over the others.
Bees nectar gathering behavior--- Is like you or me being at a seafood buffet. At a fixed price of $30 you will head for the lobster and king crab and eat them before you eat any potato salad
Supposed flies that feed on rotten meat are very good mango pollinators. In a Taiwan mango orchard a pig died and rotted during bloom time and trees nearby had record fruit set.Why not buy some beehives for a 20 acre orchard. Buy them, set them up and find a beekeeper you can make an arrangement with. He will manage the beehives, he will extract the honey and you split the honey production 50/50