Originally Posted by Gabe15

The other strong possibility I forgot to mention is herbicide damage. Have you or a neighbor potentially applied any herbicides near the plants within the last few months? I've had glyphosate drift damage bananas similarly before. Some herbicides such as dicamba are known to be highly volatile under certain conditions and can sometimes drift quite far from their original target and easily damage plants elsewhere.



No, it's mostly spread to bananas by aphids, it potentially could be spread mechanically if you cut into an infected plant with a tool and then cut a healthy plant, but less likely, and highly highly unlikely to be spread by mulch. But based on what you've described I'm leaning toward the herbicide drift possibility.