Re: Please help, is this pests/disease? Angry neighbors with roundup?
Roundup would have killed the entire plant. Looks like wind damage except not all leaves are involved so I'd guess something is chowing down. Haven't a clue what it could be. Might help the diagnoses if you put where you are in your profile so others in your area could assist; nothing here in FL is eating my banana plants. Up north the neighbor's cat ate my lemon grass and eventually killed it but here it grows fine.
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