Christmas trees of DEATH!!!

That 179-page USDA manual … it speaks in frank terms of the many insects, fungi, worms, and other horrors that can invade Christmas trees. There are aphids, spiders, spider mites, weevils, bark beetles, bagworms, budworms, and webworms, not to mention those scale insects. The gypsy moth and its cousins have plagued Christmas trees for more than a hundred years.

via The Straight Dope: Should I worry about bugs in my Christmas tree?.