Bananas on the Brink
This is an older article, and I feel like I linked to it before, but if so I can't seem to find it. I meant to write a bigger piece on this issue, but I just stumbled across it again, and might as well link to it, since it tells the story at least as well as I could.
Can This Fruit Be Saved? (Popular Science)
(Also, some recent news on progress against Black Sigatoka disease. Isn't "Black Sigatoka" an evil-sounding name? It sounds like a villain from a fantasy novel or something.)