Everyone has to make a choice as to what they use for pests. Before I bought it I did a bit of research and would like to pass on the info. Bottom line though, if it works for you and have had no problems then do what you will. I have read here in posts that it is okay to use with no worries. I have read that it is okay to use but you cant eat their eggs for a week. And I have read dont ever use it. I found an entry on another site by a writer that wrote the company and they responded that it should not be used on chickens. Finally, I found the following and decided it wasnt worth the risk. I hope this helps with some of the questions people have. www.householdproducts.nlm.nih.gov/cgi-bin/household/brands?tbl=brands&id=19022002