You may want to research this a little more but here is something that you can use to treat your yard.
http://npic.orst.edu/factsheets/imidagen.html
https://www.ncbi.nlm.nih.gov/pubmed/19003778
https://www.mdedge.com/cutis/articl...es/whats-eating-you-sticktight-flea-revisited
Sticktight Fleas - Echidnophaga Gallinacea Bites - Flea Bites on Humans
http://npic.orst.edu/factsheets/imidagen.html
https://www.ncbi.nlm.nih.gov/pubmed/19003778
https://www.mdedge.com/cutis/articl...es/whats-eating-you-sticktight-flea-revisited
Sticktight Fleas - Echidnophaga Gallinacea Bites - Flea Bites on Humans