Keep wild grassey areas cut as short as you can get them and make sure you have nothing that will attract deer.Deer are notorious tick carriers.
The only other thing you can do is spray the area with insecticide but that’s one thing I would not do.since I’d be affraid of poisoning the water supply.
No underbrush. Short grass, if any. Definitely no deer. Lots of bunnies. Occassional coyote at night. Longhorns next door.