In 2003, we bought a house with a 30 yr old Haden mango tree in the back yard. Knowing nothing about mango trees, we were grateful that a neighbor fertilized it and provided his TLC. It was the pride of the neighborhood and produced at least 1000 amazing fruits every season. Even after the 2004 hurricanes when several large limbs were lost, the Grand Dame continued to grace us with her bounty. Unfortunately, the neighbor passed away several years ago and, although we THINK we have followed his fertilizing regimen, the tree has ceased her abundant production over the past 3 years to the point that no fruits ripened last year.
She begins to flower in December and fruits appear in March with complete ripening in May and June.
We need your experience and advice to try to bring the lady back to her glory, if possible.