in the august 2008 issue of Scientific American there is an little blip on "DEET beaters"
"the neural network then scanned a library of roughly 2,000 untested piperidines, compounds related to the active ingredient in black pepper that can ward off insects"
it went on to imply that some form of these compounds last three times longer than deet. I have heard of people trying to use hot pepper spray in their garden. is this where it got started? would a black pepper sprinkling in the garden give us an edge in an area with an insect issue?
garlic and lemon grass oil have some insect repellent qualities to them as well. the essential oils from the piper nigrum fruit (black pepper) do also have some repellent qualities. i am curious what the most efficient process is for using these. straight pepper or do the oils have to be extracted. i do know that the black pepper would deter any curious four legged animals.