Putting up a live Christmas tree can be a lot of work. You have to make sure that the tree has plenty of water, sometimes having to crawl beneath the branches while trying not to dislodge any of the breakable ornaments. And then there’s the clean-up. No matter what you do, the tree is going to shed needles destined to become lodged in the bottom of your foot. Now scientists from Canada, reporting in the journal Trees, have figured out why those needles fall off, and they’ve come up with a couple of solutions that could keep needles on longer.
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