Black growth on palm trunk?

Longboat Key, FL(Zone 9b)

I have this Majesty Palm tree planted in my yard. It's never looked real healthy, but recently, I noticed this black, tar looking stuff growing on one of the main fronds. Seems to be isolated to the east facing side of the stem. Tree gets 6-8 hours of direct sun everyday.

Anyone seen this before? If so, please advise what it is and how to treat it if known.

Thanks a million!

Mac

Thumbnail by MacFL
Longboat Key, FL(Zone 9b)

Another shot.

Thumbnail by MacFL
Longboat Key, FL(Zone 9b)

Last one. Close up.

Thumbnail by MacFL
Longboat Key, FL(Zone 9b)

24 views, no replies?

I guess I've stumped the panel!!

Livermore, CA(Zone 9b)

stumped !

Dublin, CA(Zone 9a)

Since you're a paid subscriber, you might try the Palm & Cycad forum, that's where you're most likely to find the palm experts.

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