You may be a victim also like many other lawn owners. The spiders are not harmful to any item of your lawn but
Probably you have chiggers in your yard. Chiggers are red-colored ticks and are too small that cannot be seen in an instant.
No one wants to live in a house full of rats. We are well aware that rats often carry multiple diseases such as Hantavirus, Salmonella, and much more to transfer to human beings. Rats feed on every food source they find and contaminate it, not all safe, especially for kids.