My lawn and/or landcape rocks is infested with chiggers. This had happened only the last three summers. 20 days ago a friend and I were doing yeard work and both of us had 20+ chiggers bites, which itch intensely for several weeks - two years ago I had to be treated with prednisone. I do not have standing water or tall grass/weeds. I am afraid to be in my back yard to even water my pots. I want the entire yard and rock treated, but cannot find anyone who does this. What do I do to treat my entire lawn? Thank you.