Thanks for recording this one! The presentation was awesome. Great job, Alex!
I think it's still possible to grow fairly successfully inland, in an urban environment. I'm 10 miles inland, yet I can grow even the more disease-prone mangoes fairly successfully with a good fungicide routine. Even though I'm 10 miles inland, there is enough concrete, asphalt, and open air that humidity isn't off the charts. Even dot mangoes produce really well for me with a light fungicide regimen.
Loxahatchee, on the other hand, is mostly foliage, so the humidity is noticeably higher than in surrounding more urban areas. I traveled out there to look at what I thought was a good deal on some vacant land during mid-summer and was hit with a wave of humidity when I entered the area. Needless to say, I gave up on the idea of building a mango orchard out there pretty much that same day :-).
Even though BBS and "the rot" can devastate a commercial crop, I think dooryard growers can still be successful with the more BBS-susceptible cultivars. For example, I have one keitt tree whose crop was a total loss for several years due to both BBS and "the rot." However, the keitt just 25 feet away has never had an issue. And the 3 other keitts within a block of me produce prodigious crops of clean mangoes.
So, I think dooryard growers needn't throw in the towel on keitt, lemon zest, etc just yet.