We live in Dallas, TX and our next-door neighbors have chickens that range all over, but mostly stay in our yard during the day. They also have 3) roosters. I am somewhat OK with the noise and the mess but now they have brought chiggers. I know chickens have chiggers: http://ohioline.osu.edu/vme-fact/0019.html. My husband is severely allergic to chigger bites (requires medical attention) so I need to do something. If I put out pesticide, that may kill the chickens. Our neighbors speak a different language so I cannot explain this problem to them. Any suggestions? Thanks!