HELP! My palm is sick :(

[HelenSO]

Hi everyone, 

My beautiful indoor palm doesn't look so good.

We had it for about 3 years, until we noticed a discoloring of the leaves, along with tiny black sand-like stuff on the underside of them.

I can't spot insects, and I tried getting rid of the black-sand by wiping the leaves with a damp cloth, but they returned quickly.   

Hopefully you'll be able to spot the problem from the pictures attached. 

Any help would be very much appreciated!

 

 

[HelenSO]

another picture. 

[PalmatierMeg]

Could you post more photos of the whole palm? What species is it? What is it planted in? Is the potting mix wet/soggy, i.e., do you overwater it? Do you fertilize your palm? Does the pot have drainage holes? If not, move palm to a pot that does and use a coarse, light planting mix for ample drainage. Never let the pot sit in leftover water.

The more I study your photo above the more I wonder whether your palm is suffering from spider mites. An infestation of those will kill a palm very quickly as I found out to my horror years ago. Be aware that insecticides will not eliminate spider mites (even if they say they do).