4-Poster and Other Systems for Tick Control On Deer
Controlling Ticks on Deer

... The simple device consists of a bin that's filled with whole-kernel corn. Paint rollers on the four corners of the bin are loaded with a special formulation of permethrin that Y-Tex Corporation, in Cody, Wyo., registered with the U.S. Environmental Protection Agency for exclusive application to deer by the "4-poster." As a deer feeds on the corn in the bin, the animal's head and neck rub against the permethrin-laden rollers, which gives sufficient coverage to protect the entire animal.  
     The 4-poster device offers a viable tick-control alternative to spraying insecticides into the environment that might be toxic to nontarget species. Studies by ARS and cooperators have shown that after two to three years, use of the 4-poster technology will control from 92 to 98 percent of the free-living tick population around the devices

... 6 ml per pint of water for 50 pounds of food ... The dosage rate we use is 250ml of Ivomec (pour-on) per ton of feed. We prep the feed in the following manner. Using a small spray bottle, we mix 12 ml of ivomec to 2 pints of water. We then take 100 pounds of feed and spread it out on a 4x8 sheet of untreated plywood...

Four-poster feeders for sale


How we manage our 4 poster feeder moving the feeder to prevent CWD transmission - November 22, 2019

DEC seeks public comment on feeding and hunting proposals July 18, 2019 New York, LeaderHerald
...  this rulemaking proposes to define the application procedures and conditions for issuance of a permit for the use of a 4-Poster Tickicide, including the requirement that automated feeding devices used with a 4-Poster be used only in the context of a comprehensive management approach that also addresses local deer abundance...

... Devices installed on the stations, known as posters, are laced with insecticide, so when deer are lured into the stations with bait, the tick repellent is applied to the deer and kill any ticks found on the animals... the city has chosen to focus on fighting ticks on the Island’s mice by setting up bait boxes around the borough ...

Staten Island, City spending $600,000 to fight ticks, Lyme April 7, 2019 New York, SILive.com
... funding is going after the Island’s mice, rather than deer, which experts have said has played a significant role in the spread of Lyme in the borough... will buy $25 bait boxes that will trap mice ... [four poster] stations are too expensive to maintain and that only some studies have shown the stations can reduce tick populations...

Successful use of 4-poster system - December 6, 2018 Pennsylvania

How A Tree Farm Feeds Deer for Tick Control - February 11, 2018

... the environmental assessment proposes the use of ivermectin-treated corn for white-tailed deer treatment. A previous study conducted by USDA found negligible effects on the environment, and the medicated corn will kill ticks on white-tailed deer, one of the three major hosts for the tick. The treatment will not only improve the health of the deer population, but will prevent the deer from spreading ticks to adjacent properties...

Strong response to Deer & Tick survey September 11, 2017 New York, Shelter Island Reporter
... Dr. Scott Campbell, a committee member and director of the Suffolk Country Department of Health Services Anthropod-Borne Disease Laboratory, dispelled concerns about permethrin leeching into groundwater and affecting drinking water... The U.S. Department of Agriculture scientists have maintained the meat is safe as long as it comes from a deer that was otherwise healthy at the time of the kill...

Deer & Tick members battle over planned survey July 3, 2017 New York, Shelter Island Reporter
... contains leading questions on attitudes about 4-poster units — feeding stands that brush deer with a tickicide, permethrin... which he said have been effective on Ram Island.  “You can shoot all the deer you want, but you’re not going to get rid of ticks,” he said. “The problem here is mice,” Mr. Amann said...

Getting “Ticked Off” with Ticks June 23, 2017 USDA.gov
... Control methods include rodent bait boxes, ARS-patented “4-poster” deer treatment feeders, and a bioinsecticide spray ...  fitting a number of deer with GPS collars to track the paths of bucks and does between parklands and residential areas. This will bring scientific precision to where the 4-posters are placed—something that has not been done before...

Health of St. John's Deer Population Raises Concern June 1, 2017 Virgin Island, St, Thomas Source
...  reported seeing deer that were covered with ticks ... Upon discovering that the deer liked to eat a particular seed pod, Palminteri and the groundskeeper laced the pods with tick-killing medicine, and the groundskeeper hand-fed them to the deer. This quelled the infestation for several months.

USDA plans to use treated corn for ticks on deer February 8, 2017 Texas, Lone Star Outdoor News
... As part of the effort to control cattle fever ticks, the U.S Department of Agriculture, Animal and Plant Health Inspection Service (APHIS) is proposing to treat white-tailed deer with ivermectin, a broad spectrum anti-parasitic drug, to control tick vectors ...

Feds propose feeding wild deer drugs to prevent disease December 16, 2016 Texas, The Monitor
... As cattle fever ticks march northward, federal officials are proposing to feed wild white-tailed deer a drug to kill both ticks and the protozoan they carry that causes cattle fever.  The proposal will install gravity-fed feeding stations filled with corn laced with the broad spectrum anti-parasite drug ivermectin...

Shelter Island, State slashes Shelter Island's 4-poster money July 8, 2016 New York, Shelter Island Reporter
...  4-posters — feeding stands that brush deer with a tickicide, permethrin ... According to figures released at the July 6 Deer & Tick Committee meeting, tick drags at the beginning of the trial in 2008 were averaging 440 lone star nymphs, which dropped to 18 by the end of the three-year trial in 2010...

Deer Culling Discussed Amid Worry Over Tick Diseases July 7, 2016 Massachusetts, vineyardgazette.com
... At one time, the Island deer herd was treated with four-posters, feeding stations with vertical rollers that attract the deer and apply a tick toxin to their ears and neck. The stations were removed some time ago, following the death of the Cape and Islands tick and Lyme disease specialist who had run the program.,, Dan Gilrein, an entomologist with Cornell University, said he has noted a “dramatic decline” in deer ticks in areas of Long Island where four posters were used and maintained...

The EPA has approved a specially formulated 10% permethrin based tickicide for use in treating ticks on deer.  As with any pesticide, labels regarding its safety are included with its shipment to the Licensed Pesticide Operator.

For additional information contact:
Dandux Outdoors
3451 Ellicott Center Drive
Ellicott City, Md 21043
Phone: 800 933-2638 (extension: #481)
Fax: 410.461.2987
Email: info@crdaniels.com

4-poster feeders for sale at
215 651-8329

Deer Using 4-Poster System.  Picture from Shelter Island Police Department


Management of Plant and Arthropod Pests by Deer Farmers in Florida.   Journal of Integrated Pest Management, Volume 11, Issue 1, 2020, 12.
...  Of surveyed deer farmers in Florida, 94% reported using chemicals for plant and arthropod pest control. Deer farmers reported controlling biting midges, mosquitoes, horse flies, and deer flies as their target arthropods. The primary herbicide and arthropod-targeted pesticide reported were glyphosate and permethrin, respectively...

... While most survey respondents expressed knowledge of natural product acaricides and Damminix Tick Tubes, many reported that they either did not employ or knew very little about other alternative tick control methods (including entomopathogenic fungus and topical application of acaricides to tick hosts via 4-Poster deer treatment stations or Select TCS rodent bait boxes). This suggests either a failure to adequately inform the pest management industry and their potential client base of the availability of alternate methods, and/or industry concerns about cost and effectiveness of the alternatives...

... Contrary to the popular belief that deer are the primary source of the disease spread by ticks, researchers say, it is mice that usually first infect young ticks with the bacteria that causes Lyme... using a device for deer, called a “four poster,” that attracts deer with bait.,, except that it carries a pesticide to kill ticks...

... This invention relates to methods to control and prevent tick infestations in immunized non-bovine animals, including deer, which further protects the animals against the transmission of tick-borne pathogens... the reduction in the incidence of tick infestation afforded by the vaccines may concurrently reduce the incidence of diseases caused by these pathogens in susceptible animals...

...  partners will place 4-Poster feeders/self-treatment devices in four Howard County parks with dense deer populations... "We know from past studies that the 4-Posters have effectively reduced the number of deer ticks. However, prior studies did not achieve consistent levels of tick control," ...

Cornell 4-poster Deer and Tick Study  Several studies (Carroll et al 2002, Pound et al 2000a, Pound et al 2000b, Solberg et al 2003)1 have shown large reductions in tick populations in the years following use of 4-Poster devices.  

Control Deer Ticks Using Four-Poster Feeding Device to Deliver Safe Pesticide to Deer  University of Rhode Island
... Small-scale trials using a novel strategy developed by the USDA called the '4-poster' were recently completed in 5 northeastern states including Rhode Island. Over a 5-year period, abundance of nymphal deer ticks, the stage most responsible for disease transmission, was reduced by over 50% across a 2 square mile area. Now, with funding made available through the Centers for Disease Control and Prevention, the town of Narragansett has the opportunity to put this technology into action on a town-wide scale, to test if this device can reduce Lyme disease incidence.

Systemic treatment of white-tailed deer with ivermectin-medicated bait to control free-living populations of lone star ticks
... Whole-kernel corn was treated with 10 mg ivermectin per 0.45 kg corn and fed at rate of approximately .45 kg/deer per day to white-tailed deer confined in the treatment pasture, whereas deer in an adjacent control pasture received a similar ration of untreated corn. Treatments were dispensed from February through September of 1992 and 1993, and free-living populations of lone star ticks... This study demonstrates that a freely consumed, systemically active acaricidal bait ingested by white-tailed deer under nearly wild conditions can significantly reduce the abundance of all stages of free-living long star ticks.  [Use caution when feeding corn, use of goat or deer chow will reduce risks]  
     See also, Treatment for Lice,  Idaho Fish and Game. Ten deer were anesthetized, given orange ear tags and treated with ivermectin (2 ml/100 lb).  Marked deer were relocated on monthly intervals and retreated when and if they could be found.  Treatment was effective in limiting the extent of the hair loss and reducing lice numbers in these deer.

Deer & Tick: Deployment of 4-posters soon 'unlikely' (study to test effectiveness of tick control for deer) February 24, 2011 New York Shelter Island Reporter By Ted Hills | February 23, 2011 in Government, News The Department of Environmental Conservation is unlikely to approve 4-poster deer feeding stations for use in reducing ticks in time for the town to deploy them by mid-March ... Testing showed tick numbers were “very, very low last year,” [Cornel scientist] Dr. Gilrein said, “so you can coast on that for at least a short time.”

Acaricidal treatment of white-tailed deer to control Ixodes ... (use of feeding systems for deer to control ticks) July 5, 2011 New York
Deer densities, estimated by aerial snow counts, averaged 22 and 28 deer per km(2) in Bedford and Lewisboro, respectively, over a 3-year period. Significant reductions in tick numbers on deer captured in the treatment area were noted in fall 1999 compared to deer captured at the control site. Drag sampling for nymphal host-seeking ticks indicated 63.6% control in 2001, which dropped to 54.8% the following year, but reached 80% in 2003. Higher-than-normal acorn production in 2001 that likely caused a drop in deer visitation to the feeders may have reduced efficacy against larval ticks in 2002. The 4-Poster effectively reduced the density of Ixodes scapularis, though the level of control is dependent on environmental factors that affect feeding behavior of white-tailed deer..

American Lyme Disease Foundation, Information on 4-Poster
Studies ... have shown that use of '4-Poster' technology has resulted in the control of 92 to 98% of free-living tick populations in areas around the devices after three years of use.,, Sites that are deer-fenced or where movement of deer is otherwise 'controlled' have better results than 'unrestricted sites,' where deer are able to come and go as they please.

North Haven Residents Call for Tick Abatement July 5, 2012 New York, The Sag Harbor Express Josephine DeVincenz ... urged the North Haven Village Board to explore implementing a “4-Poster” program in the village... Cornell Cooperative Extension, which completed the 4-Poster study in Shelter Island in 2011, DeVincenzi is correct. The study did show tick populations could be controlled over time and significantly reduced using 4-Poster devices. The duel feeding stations are designed to apply the insecticide permethrin to the necks, head, ears and shoulders of deer ... 

Update on: 4-Poster Tick Management and White-tailed Deer April 14, 2012, Brookhaven National Lab (BNL)
Studies conducted in North Haven, Shelter & Fire Islands found:
• Car deer accidents didn’t really change
• Deer didn’t move out of home ranges
• Raccoons, squirrels, mice, birds did use devices 
• Residue transfer to meat non-conclusive
• Efficacy overall – 86% reduction in ticks
ƒ BNL ready to order 14 devices

Efficacy of Amitraz-Impregnated Collars on White-Tailed Deer (Artiodactyla: Cervidae) in Reducing Free-Living Populations of Lone Star Ticks (Acari: Ixodidae) 2012 Journal of Economic Entomology, JM Pound, KH Lohmeyer, RB Davey, JA Miller…
     Over a 7 yr period, we monitored the effect of a commercially available, amitraz impregnated anti-tick collar in controlling free-living populations of lone star ticks, Amblyomma americanum (L.) when manually fitted around necks of white-tailed deer, Odocoileus virginianus (Zimmermann). Study animals in treatment and control groups were confined in 38.8 ha game-fenced and densely vegetated treatment plots in South Texas. Tick densities during years 1 and 7 served as untreated pre- and posttreatment comparisons and treatments occurred during years 2 through 5. Reductions in tick densities in the treatment plot were compared against tick densities in a control plot having similar vegetation and numbers of untreated deer. During years of treatment, indices of control pressure ranged from 18.2 to 82.6 for nymphs and 16.9–78.7 for adults, and efficacy, expressed as percentage control during the final year of treatment, was 77.2 and 85.0%, respectively, for nymphal and adult ticks. These data show that acaricidal collar treatments provide efficacies very similar to those achieved with the existing ivermectin-medicated bait and ‘4-Poster’ topical treatment technologies to control ticks feeding on wild white-tailed deer.