The mite Floracarus perrepae Knihinicki & Boczek (Acariformes: Eriophyidae), a biological control agent of Lygodium microphyllum (Cav.) R. Br (Polypodiales: Lygodiaceae), Old World climbing fern, was released in south Florida from 2008 to 2010 but did not readily establish in the field. The original release sites were re surveyed in 2013 and the mite has established within Jonathan Dickinson State Park and has dispersed to L. microphyllum patches outside the park at a rate of 3.5 ± 0.6 km/yr. The mite has also dispersed to the Cape Sable region of Everglades National Park.