Dry cloths against mosquitoes
I've heard this tip from American friends who swear by this method in gardening.
Dry cloths 1 to 2 per person, are attached to the clothing. My girlfriend pushes her under the bra straps (over a shirt) or ties her to the belt.
They keep away mosquitoes that do not like the smell.
Researchers at the University of Kansas have done tests with the bloodsuckers, especially the funeral gnat Bradysia coprophila, and confirmed its success.
I think that's better than fogging yourself with insects from head to toe.