Removing unhealthy palm fronds is it ok or should it be left alone

[Plantking165]

On my coconut palm most the fronds have alot I'd issues but with what seems a petiole or rachis blight is not too bad on the lower fronds but on the upper frond one of the newer ones and largest fronds is severely diseased not sure why it's worse on this one frond vs all the rest bit I was thinking of removing it or should I leave it? Look where the leaflets attach to the petiole thats the main disease I'm talking about. Some of these pics are about a week or 2 ago its worse now its spreading across the petiole and turning the underside of the petiole near the tip black.

[kinzyjr]

Leave them on.  They are making food for the plant.

[Plantking165]

48 minutes ago, kinzyjr said:

Leave them on.  They are making food for the plant.

You ever see anything like this before in coconuts the areas are sunken in and it looks horrible what do I do about it?

[kinzyjr]

It might be cold damage or leaf spot, or leaf spot that happened due to cold damage.  If others have a different diagnosis, please share.

I've seen it happen on some fronds here.  Unfortunately, the only thing you can do once they are damaged is let the palm grow more fronds to replace the damaged ones.

[Plantking165]

2 minutes ago, kinzyjr said:

It might be cold damage or leaf spot, or leaf spot that happened due to cold damage.  If others have a different diagnosis, please share.

I've seen it happen on some fronds here.  Unfortunately, the only thing you can do once they are damaged is let the palm grow more fronds to replace the damaged ones.

I would love others opinions too because I'm unsure, it seems like it's still spreading its really black on the petiole other fronds have this but not near as bad as frond 4 there are only 5 fronds and a 6th one currently opening. It doesn't quote resonate with petiole and rachis blight it seems a bit different.. Here are pics I took of it rn the bad frond and some older ones where the frond is dying bc its old but you can see the petiole damage isn't as bad as one of the newer fronds I dont understand why a newer frond would be worse than the older ones well the frond is fairly new.

[3 Milesfrom Gulf of Mexico]

Hit it with some sulphur dust.  Can't hurt it.  May clear up some of the disease.  

[Merlyn]

I posted a few comments in your other thread, and just thought of something else.  Are they being hit by yard sprinklers or overhead tap water irrigation?  Or maybe hard well water overhead irrigation?  The metallic and dusty-white sheen sorta looks like hard water stains.

[Plantking165]

1 hour ago, Merlyn said:

I posted a few comments in your other thread, and just thought of something else.  Are they being hit by yard sprinklers or overhead tap water irrigation?  Or maybe hard well water overhead irrigation?  The metallic and dusty-white sheen sorta looks like hard water stains.

No I don't water overhead just rain hits the leaves alot of issues going on with this palm im a little worried for it.