The liquid fence url is the home page for XP-20. The auburn url is a
study of various repellents. They state that XP-20 is Thiram, a bitter
tatsting fungicide. They also state that spraying with rotten eggs
gives the best protection, but I didn't read it thoroughly to see if
they have a formula to come up with a sprayable mix.
[NAFEX] Deer -formula for XP-20?,
Rodney Eveland, 02/09/2004