I'm a soil guy, but I'd remove the dead roots before they rot.

This will stress her a bit. but if she's going to throw-out nanners, likely they'll show within a couple of weeks. This is not a gurantee nanners will happen, but something to look out for. Regardless, it'll take her a week or two to recover and continue maturing, which adds a couple of weeks to her finish date. I wouldn't re-nute her at full strength till she's recovered a week or so. (depending on how she's looking)


Would also raise the lights a bit, and ease-up on direct fans for a couple of days if possible.