Foxtail palm root

Question

One of my Foxtails has what looks like some sort of disease in its base. The tree looks healthy, but the root seems to be being eaten.

Answer 1

Compare the appearance of your tree with these photographs showing the variation in how normal palms can look:

http://edis.ifas.ufl.edu/ep344

Here is a possible disease palms can get:
http://edis.ifas.ufl.edu/pp100

If it still looks abnormal, you might want to consult a local extension agent or arborist. Without seeing a photograph, I'm not sure I can help more.