the little one couldn't make it u.u thank you for your helpYes remove all leaves that are fifty percent or more damaged. The ones that are only half dead can be trimmed. Leaving the living part. Dead plant matter will attract pest and in turn diminish plant health and decrease yield.
Poor little one! Post some before and after pictures on the remaining plants when you get the chance!the little one couldn't make it u.u thank you for your help