I have been known to catch a few in my day.....
try going to the home centers and getting some snap traps and nailing them to the trees and fences where you are seeing them. Bait the traps but dont set them for a couple of days, get them used to feeding there, then about 2 to 3 days later, set the trap and start removing the little suckers.
you can also call one of the local exterminators in town and let them take care of the problem.
(sorry, shamless plug for us)
