Originally Posted by Scott Craft

I have a couple groupings of Manzano bananas that have produced very good fruit for the past few years (the plants are about 5 years old). Now, I have 4 bunches on the two different groups and all of them are producing fruit that is not developing properly. The growth of the individual bananas is stunted, never exceeding roughly a thumbs width in size. Length appears roughly normal; it's just the diameter of the fruit that's off. In past years I've fertilized them with Miracle Grow on a hose sprayer along with all the other plants I have growing nearby. I've done that a couple times this year also but I'm mainly using an 8-10-8 fertilizer now which I apply about once a month. They also get plenty of water from a drip irrigation system daily. Any thoughts on what might be causing this?