Listerine Keeps the Mosquitoes Away-Unproven!

Summary of eRumor:

A suggestion that spraying Listerine mouthwash around your property will keep mosquitoes away.

The Truth:

There is no documentation that Listerine mouthwash is a good mosquito repellant.  The writer of the email fails to identify who he or she is or where this took place so there’s no way of verifying it. contacted the folks at Johnson and Johnson, the makers of Listerine.  They said there has not been any research on the effect Listerine might have on mosquitoes.  All of their testing has been on germs, such as in the mouth.

Updated 3/8/08

A real example of the eRumor as it has appeared on the Internet:

Mosquito spray…..

I can’t wait to try this in the summer!

I was at a deck party awhile back, and the bugs were having a ball biting everyone. A man at the party sprayed the lawn and deck floor with Listerine, and the little demons disappeared.
The next year I filled a 4-ounce spray bottle and used it around my seat whenever I saw mosquitoes. And voila! That worked as well. It worked at a picnic where we sprayed the area around the food table, the children’s swing area, and the standing water nearby.
During the summer, I don’t leave home without it…..Pass it on.
I tried this on my deck and around all of my doors. It works – in fact, it killed them instantly. I bought my bottle from Target and it cost me $1.89. It really doesn’t take much, and it is a big bottle, too; so it is not as expensive to use as the can of spray you buy that doesn’t last 30 minutes. So, try this, please. It will last a couple of days. Don’t spray directly on a wood door (like your front door), but spray around the frame. Spray around the window frames, and even inside the dog house