I use it sparingly in my garden. I looked at the MSDS and didn't find anything alarming in it. I found that once fire ants get under your mulch there is almost no other way to remove them. I apply liquid molasses every time I feed my plants but it is only a little help. Below is a link to the official MSDS on Amdro fire ant bait.
http://www.amdro.com/~/media/Files/M...203220000.ashx