If they are talking about the Willamette Valley, there is a natural barrier preventing ticks from making it in ( cascade mountain range on all sides, Columbia River to the north )
Ticks will need to be introduced. It is bound to happen eventually but for now there are areas without ticks that latch onto humans.
https://en.wikipedia.org/wiki/Tick
if they can go that “far south”, i’m sure they are already where you are.
If they are talking about the Willamette Valley, there is a natural barrier preventing ticks from making it in ( cascade mountain range on all sides, Columbia River to the north )
Ticks will need to be introduced. It is bound to happen eventually but for now there are areas without ticks that latch onto humans.