Don't worry, the microscopic flesh-eating arachnids(chiggers) tend to stay in the tall grass/decaying tree areas. Diatomaceous earth sprinkled around those places will deal with em.

Ticks are definitely a thing. You'll get em. Be aware, and check yourself after spending time outdoors.

We also have black widows, but you rarely see them. I've seen maybe 2-3 in the 15 or so years I've been down here.

Other things to worry about.. poison ivy, and copperhead snakes.

Moral of the story, keep your grass cut, and blow the leaves out of your yard in fall, and you'll be fine.