I planted a mango tree 2 years ago with leaves that emerged stunted, deformed, and miniature, even after what I thought was proper care. While I was told by the UF Extension it may be a rare disease, the nursery that sold it to me advised me to correct for a nutritional deficiency. He suspected boron was lacking. I dismissed the advice at the time, and eventually just removed the tree and planted anew one since every burst of new growth was the same.

I planted a new mango tree (same variety and planted in the same location) the first of this year and it appeared to be doing reasonably well. I've sprayed it once with a nutritional spray (Southern Ag). I also gave it a healthy helping of black cow manure to help it grow in the short term. And I was getting ready to give it a chelated iron drench. All in all, I've been very nice to it in hopes that it wouldn't suffer like the last one did.

Unfortunately, I noticed that, after recently tipping it, the new growth emerging is stunted, deformed, and miniature like the previous tree, although not quite as severe. For whatever reason a number of the leaves are also browning (although I think that to be unrelated and perhaps related to salt spray since I live not far from the ocean).

I wonder if anyone has any ideas about what to do. Right now, I'm learning toward correcting for a boron deficiency, but to be honest, I'm sort of flying blindly. All I know is that it's lacking in something and the deficiency needs to be corrected for it to grow normally.