Your real Christmas tree could have thousands of bugs living on it. According to Safer Brand, an organic gardening and pest control company, there could be up to 25,000 bugs on one Christmas tree, including aphids, spiders, mites, adelgids, sawflies, bark beetles and even praying mantises.
To prevent any potential infestation, you can vigorously shake a new Christmas tree before bringing it into your home and be sure to remove any bird nests or egg sacs that you might find amongst the branches before bringing the tree inside. Other options include leaving the tree in your garage for a few days, or sprinkling the tree with an insecticidal powder before bringing it indoors.