Will you be using the upcoming holiday weekend to cut down your own fresh, local, Christmas tree? Or maybe buy one at a local nursery yard or hardware store? Great!
Just like firewood, our advice is to buy local, and/or buy from a reputable dealer. Christmas trees are actually a pretty well regulated product, so as long as you are buying from a licensed local business, your potential to accidentally spread pests is very low.
We cover this topic every year, so here's an archive in case you want to delve deeper.
All about Holiday Greenery, including our catchy "12 Tree Tips of Christmas" (updated 11/2013)