https://www.audubon.org/news/migrating-birds-may-be-spreading-invasive-pest-decimates-forests
The hemlock woolly adelgid is moving north, and feathers could be providing the perfect ride, experiments show.
migrating birdsinvasive pestmayspreading
https://content.ces.ncsu.edu/firewood-as-a-vector-in-invasive-pest-dispersal
This factsheet covers information related to firewood as a threat in moving invasive pests to new areas.
as ainvasive pestnc statefirewoodvector