https://www.wired.com/story/ticks-and-the-diseases-they-carry-are-spreading-can-this-drug-stamp-them-out/
If it works on Deer it probably works on cows to.
This is not a Woodland Tick. I suspect that an early spring pasture burn could help reduce populations. Quail and Bobwhite and other game birds might also help.
S/B “Too” not “To”;