What do you think happened to this palm tree?
Today I uncovered our Trachy, it has been covered all winter here in SE Minnesota. As you can see from the embedded photos, the outer third of most of the fronds are brown and all curled up. I don't understand what would have caused this. Also, should I just cut this dead stuff off? (There didn't seem to be any noticeable humidity in the enclosure. Also, I had lights going in the enclosure that kept the temps between 35 and about 70 all winter.)
Thanks in advance.