Dendrobiums- question about covering on canes

[Linnie]

I was told to make sure and clean off the coverings of the cattylea pseduo bulbs to make sure critters couldn't make their home in there.

I just assumed the same thing on my dendrobium canes but someone just told me at a recent orchid show I went to that you don't do that with dendrobiums.

Is it still okay to peel off when it becomes dry and starts to fall off on it's own? Or should I just leave it alone.

Thanks