Received an ad today for a company called MosquitoNix (www.mosquitoNix.com
) that is selling misters using "safe" pyrethrum made from chrysanthemums. I believe this is the stuff that Howard says is NOT safe. Please correct me if I am wrong.
Their Web site says that the product they use contains "Natural pyrethrum and the added synergist." I woiuld be surprised if that is not piperonyl butoxide (PBO) or PBO and something else. (Basically, PBO is added to impair liver function so that the main poison is not broken down as fast and can work longer.) The Web site doesn't seem to say that the ONLY ingredients are pyrethrum, the "added synergist," and water. It is not impossible that the "added synergist" could be a blended product that contains PBO and something like permethrin and maybe some ever present/never defined "inert ingredients." I wouldn't use their product it if it is PBO; I wouldn't use it even if it isn't PBO. Not to put words in the Dirt Doctor's mouth, but I don't believe he thinks anything with PBO is "safe," and neither do I.
There always is hype about how effective something is at doing a particular task without any practical explanation of what it does to other things. My kitchen, garage, and any hardware store are stocked with devices and materials that are sure-fire remedies for freckles, acne, or anyone who wants a body part removed. It usually is better not to discuss the aftermath or side effects from their use, though.