ANIMALS - 7 Humane Solutions to Rat and Mice Infestations

1.PETA suggests whipping up a potent concoction of salad oil with horseradish, garlic, and plenty of cayenne pepper. Let the oil sit several days, then strain it. Use a spray bottle to coat surfaces with the rodent deterrent.
2.get a cat
3.trap and release
4. a rodent trap that mimics giant rat eating plants discovered in the Philippines.
http://www.treehugger.com/green-home/7-humane-solutions-rat-and-mice-infestations.html