Rich, I've never heard that before. Have to look into it !
I'm a DEET kinda guy when they start swarming and eating everything alive.
I bought a DEET fogger last year that you spray in the air instead of on yourself. Seemed to keep some of the clouds of gulf coast mosquitos away for awhile.
When I was a kid, we always used Avon Skin-So-Soft. It really works well, and doesn't have toxic stuff like DEET. Kinda smells girly, and its really oily, but it works.