I’m about 3/4 the way through Susan Paskewitz’s presentation.
However in the first 15 or so minutes (14:00 will get you close) she was talking about the first two stages (larva and nymphs) needing a host, chipmunks and 2 flavors of mice (and further North a vole), then they molted into the adult that feeds on humans, deer and a number of other animals.
Disclaimer: I’m not a tic expert nor did I sleep at a Holiday Inn Express last night.
So far the tic granules work well for me although the rains must have washed it all down stream as I had two wood ticks on me and the dog had one over the weekend.