If you have trees, put the signs up high using a ladder. Trespassers tend to be lazy, that is one possible reason that they did not work and buy their own land. I never heard on the purple thing?

Update: Purple paint is only used in 4 states.

http://www.signs.com/blog/state-by-state-guide-to-no-trespassing-laws-signage/

Last edited by RAH; 06/09/15 07:40 AM.