It is, we have so much in my neck of the woods that chigger weed is the common name here so I often forget the more known names are Queen Anne's Lace or wild carrot. I hear guinea fowl will eat the chiggers if they infest your coops, but chickens typically wont. When you get near them wear some OFF and I recommend killing the weeds with the meanest pesticides to hand and even then the weed will probably come back, chiggers like to live in the flowers but could be anywhere on the plant and will often jump at any tall things in the vicinity, they will get everywhere if you bump the flower so aim for the root of the weed. with a pesticide spray, even a small gust will make them scatter and jump from the flowers. Good luck, my great grandpa always told me chiggers were a nightmare if they got to livestock. I hope there's better options these days cause he just quarantined and slaughtered the infected ones, he told me he caught chiggers on himself about every other week that summer and gave up live stock when they found some natural gas on his land mostly because of his experience with chiggers, the man was no dummy either, he was an engineer during WW2 and actually worked at oak ridge from it's founding until the 60s.