Any reader of Don't Move Firewood knows that once a pest is in North America, one of the ways they move is on contaminated firewood. But do you know how those pests get here in the first place?

Pallets, crates, those giant wooden spools, and certain kinds of live plants can harbor infestations, and thus bring in forest pests when they are moved or imported. And of course, these things can come from far away (like China or Russia) or they can come from a pre-existing infestation closer to home (like Canada).