ScienceDaily (Sep. 1, 2009) — A device called the "4-poster" Deer Treatment Bait Station, developed and patented by scientists with the Agricultural Research Service (ARS), was highly effective at reducing the number of ticks infected with the Lyme disease bacterium in a six-year U.S. Department of Agriculture (USDA) study in five Northeastern states—Maryland, New Jersey, New York, Connecticut and Rhode Island—where the disease is endemic.
http://www.sciencedaily.com/releases/2009/08/090830103124.htm