Does anyone know about extreme pruning techniques in Thailand, for mango trees? I hear it is being used in Africa, with great results. The idea is to plant the trees closer together, such as rows 4 meters apart, by 4.5 to 5 meters in between the trees in a row. And keep the canopy smaller, and the trees shorter. Supposed to make it easier to spray, harvest and maintain. And increased productivity per tree, based on additional light allowed by a smaller canopy, reduced disease, less insect issues, etc. Any feedback is appreciated. 

Dunno about mangoes but this was promoted for fruit trees (apples I think) in Europe some years ago. It worked but shortened the life of the trees significantly, 

Some good reading material for you.

 

Mango pruning.pdf