Kentucky Is Asking Hunters to Help Contain CWD. Here’s What Wildlife Managers Learn From the Harvest.
A four-day antlerless deer season is doing more than putting extra hunting days on the calendar. Kentucky is using hunter harvest to reduce deer numbers, collect biological samples, and find out whether chronic wasting disease is moving through western Kentucky.
Article Contents
Kentucky is turning deer harvest into disease surveillance.
- From September 25–28, 2026, qualifying counties in Kentucky’s Chronic Wasting Disease Surveillance Zone have a special antlerless-only deer season.
- Hunters may use firearms, bows or crossbows, but antlered deer cannot be taken during the special season.
- CWD testing is mandatory. Harvested deer must be telechecked and the head submitted at a CWD Sample Drop-off Site within the surveillance zone.
- Henderson, Union and Webster counties are part of the zone because CWD was detected just across the Ohio River in Posey County, Indiana.
- The harvest does two jobs at once: it removes deer from the population while producing biological samples that show managers where CWD has — or has not yet — been detected.
Four extra days of deer hunting can sound like a small change to a hunting calendar. In western Kentucky this week, it is something more deliberate.
From September 25 through September 28, the Kentucky Department of Fish and Wildlife Resources is allowing a special antlerless deer harvest in qualifying counties within the state’s Chronic Wasting Disease Surveillance Zone. Firearms, bows and crossbows may be used. Only antlerless deer may be taken.
Then comes the part that makes this a wildlife-management story rather than simply a season announcement: the deer becomes a data point.
Hunters must submit the head for CWD testing and provide information about where the deer was harvested. That gives biologists something they cannot get from a regulation or population estimate alone: biological samples tied to actual places on the ground.
Kentucky is using hunters as part of the surveillance system. Harvest removes animals from the population, but it also creates hundreds of opportunities to look for a disease that can otherwise remain difficult to detect while prevalence is still low.
The Four-Day Season
Kentucky’s special CWD antlerless season runs September 25–28, 2026, in CWD Surveillance Zone counties that are also located in Deer Zones 1, 2 or 3.
The surveillance zone currently covers 23 Kentucky counties in several parts of the state. For the LWR region, the important western Kentucky counties include Ballard, Calloway, Carlisle, Fulton, Graves, Henderson, Hickman, Marshall, McCracken, Union and Webster.
The four-day antlerless season applies only to surveillance-zone counties that are in Deer Zones 1–3. McCreary and Whitley counties are Deer Zone 4 counties and are not operating under the same special antlerless firearm season.
Kentucky experimented with a shorter version last year. The state’s 2026 announcement says 576 deer were harvested during the two-day 2025 CWD antlerless season across the 14 surveillance-zone counties then participating. This year’s season is twice as long.
That matters because surveillance is partly a numbers problem. Managers cannot test a deer they never receive.
One harvested deer can become both population management and surveillance data.
An antlerless deer is legally harvested during the special four-day season.
The hunter records the harvest location and completes Kentucky’s Telecheck requirement.
The head is submitted at a CWD Sample Drop-off Site for laboratory testing.
Results help managers decide where future surveillance or disease-management effort should be concentrated.
This Is Not Just an Extra Hunting Season
Wildlife agencies have relatively few practical ways to influence a free-ranging deer population across thousands of acres of public and private land.
Hunting is one of them.
That is especially important with chronic wasting disease because CWD is not something wildlife managers can treat after infection. It is a fatal neurological disease caused by abnormal proteins called prions. There is no vaccine and no treatment for an infected wild deer.
Prions can spread through direct contact between animals and through contaminated environments. Once established, they can persist outside an animal for long periods. That makes preventing establishment, finding new infection areas early and limiting future transmission much more realistic management goals than trying to cure infected deer.
Deer density becomes part of that equation because more deer can mean more opportunities for infected and uninfected animals to interact, use the same feeding areas and leave infectious material in the same environment.
Research and decades of management experience in other CWD states have therefore treated hunter harvest as one of the primary tools available for influencing deer abundance and disease dynamics.
Harvest does not eliminate CWD from the environment. It changes the number and distribution of deer that can transmit it. The testing requirement does something different: it tells managers whether the disease is being detected and where those detections occur.
Why Focus on Antlerless Deer?
The antlerless restriction is important because deer management is not simply about how many animals are harvested. Which animals are removed changes the population differently.
Removing females can affect both the number of deer alive today and the number of fawns entering the population later. That makes antlerless harvest one of the tools agencies use when the goal includes controlling or lowering deer abundance.
CWD surveillance creates a slightly different question.
Adult males often have higher CWD prevalence than younger deer and females in established disease areas, which can make them particularly useful for disease detection. But surveillance programs still need samples from different portions of the population and from different places.
Kentucky’s September season therefore accomplishes something a buck-focused season does not: it creates additional antlerless harvest while simultaneously requiring those harvested animals to enter the surveillance system.
It is population management and disease monitoring happening through the same event.
What Wildlife Managers Can Learn From One Deer
A laboratory result begins with a simple question: was CWD detected in this animal?
When hundreds or thousands of samples are collected across a region, however, the information becomes much more useful.
Detection
The first job is finding the disease at all.
CWD can be present at very low prevalence when it first enters an area. That means many deer may test negative before one infected deer is found. Large sample numbers improve the chances of detecting a rare infection.
Location
Kentucky requires hunters submitting samples to provide a harvest location using a grid number, address or GPS coordinates.
That lets wildlife managers look beyond county totals. A positive sample is much more useful when biologists know where on the landscape the animal was harvested.
Patterns Over Time
Repeated surveillance can eventually show whether detections remain isolated, appear in new areas or become more common within an existing disease zone.
That is one reason a single year of testing is not enough.
Where to Look Harder
Surveillance data can guide the next round of surveillance. Managers can focus sampling, field work and regulatory attention around places where risk appears to be changing.
Hunter-harvest surveillance is extremely useful because hunters can provide large numbers of samples across a wide area at far lower cost than an agency could collect alone. But it is not perfectly random. Hunters do not use every property equally, and harvest can differ by access, deer age, sex and hunting method. Managers still have to interpret the sample carefully.
That nuance matters. A CWD surveillance map is not a perfect map of every infected and uninfected deer.
It is a map of what was sampled.
Good disease management starts by understanding that difference.
Why Henderson, Union and Webster Counties Are in the Zone
The western Kentucky story does not begin in Kentucky.
On February 21, 2025, the Indiana Department of Natural Resources announced that a hunter-harvested 2½-year-old male white-tailed deer from Posey County had tested positive for chronic wasting disease. Multiple tests confirmed the infection.
Posey County sits directly across the Ohio River from Henderson and Union counties.
Kentucky’s current CWD response plan adds an even more important detail: the positive deer was harvested less than two miles north of the Kentucky border near Henderson County.
Kentucky responded by adding Henderson, Union and Webster counties to its CWD Surveillance Zone.
In other words, Kentucky did not wait for a positive deer to appear on its side of the river before increasing surveillance.
How one detection changed management across the river
A hunter-harvested 2½-year-old male deer tests positive near the Kentucky border.
Henderson, Union and Webster counties are added to Kentucky’s CWD Surveillance Zone.
Hunters provide additional antlerless harvest and biological samples across the surveillance area.
What We Know So Far in Henderson, Union and Webster
The important starting point is that Kentucky has not listed a CWD detection in any of the three counties that were added because of the Posey County case.
Kentucky’s posted testing data for the March 1, 2025 through February 28, 2026 surveillance year show:
That is 967 submitted samples across the three counties, with no positive detections listed in the state’s published table.
“Not detected” does not mean CWD is proven absent from every deer in a county. It means the disease was not detected in the animals that were sampled. When prevalence is very low, collecting more samples improves the chance of finding an infection if one is present.
That is what makes the 2026 hunt interesting from a reporting standpoint.
The result is not simply the number of deer harvested over four days. The more important number may be how many usable samples come back from each county — and whether any change the map.
CWD Is Becoming a Tri-State Management Problem
State wildlife agencies manage deer through state regulations, county boundaries, hunting zones and agency programs.
Disease does not organize itself that way.
The Posey County detection makes that especially clear for the lower Ohio River region. One deer harvested in southwestern Indiana changed disease-management rules across the river in western Kentucky.
Indiana responded on its side as well. Posey, Vanderburgh and Gibson counties became part of Indiana’s enhanced CWD surveillance effort, while Kentucky created the Henderson–Union–Webster surveillance area to the south.
Those programs have different rules because they are administered by different states. Ecologically, they are watching different parts of the same regional problem.
That is exactly the kind of issue that can disappear when wildlife reporting stops at a state line.
Southwestern Indiana and western Kentucky now have adjoining CWD surveillance efforts built around the same regional detection. Future results from Posey, Vanderburgh and Gibson counties should be read alongside results from Henderson, Union and Webster rather than as separate stories.
That makes CWD a natural long-term dataset for Land & Wildlife Report: where samples are collected, where detections occur, how the surveillance zones change and what management actions follow.
What Hunters Need to Know Before Participating
The management story only works if the samples actually reach the laboratory. Kentucky therefore attaches several requirements to the special season.
Hunter Checklist
- Confirm that the hunting location is in a CWD Surveillance Zone county that is also in Deer Zone 1, 2 or 3.
- Harvest antlerless deer only. Firearms, bows and crossbows are legal during the special season.
- Complete Kentucky’s required Telecheck before submitting the sample.
- Take the deer head, with at least five inches of neck attached, to a CWD Sample Drop-off Site.
- Use a drop-off location within the CWD Surveillance Zone.
- Provide the harvest location using Kentucky’s Know Before You Go grid, an address or GPS coordinates.
- Retain the tear-off portion of the biological sample tag as proof that the deer was submitted.
Carcass Movement Also Matters
Kentucky also restricts movement of high-risk carcass parts out of a CWD Surveillance Zone.
Whole carcasses, intact heads, spinal columns and other high-risk material cannot simply be carried outside the zone. Kentucky allows items such as deboned meat, clean skulls, clean skull caps, antlers, hides and finished taxidermy products to leave.
The reason is straightforward: wildlife managers do not want people unintentionally moving potentially infectious material farther than the deer would have moved on its own.
What Happens After the Samples Come Back?
For most hunters, the next step is simply waiting for a test result. For wildlife managers, the work is larger.
Each new surveillance season adds another layer to the regional picture.
If testing continues to produce no detections in Henderson, Union and Webster counties, managers gain more evidence about what they have sampled without being able to declare the area disease-free with certainty.
If a positive deer appears, the location, age and sex of that animal become part of the next management decision.
That may mean more intensive sampling around the detection, changes in surveillance boundaries, different harvest strategies or additional restrictions intended to reduce opportunities for disease movement.
This is where disease management begins to look a lot like adaptive wildlife management .
Managers act with incomplete information. They collect new data. They compare what actually happened with what they expected. Then the next decision changes.
The four-day hunt is one turn through that loop.
The most useful follow-up will not be simply whether Kentucky calls the special season successful. Watch the sample totals and test results from Henderson, Union and Webster counties and compare them with new surveillance results from Posey, Vanderburgh and Gibson counties in Indiana. That is where the regional CWD story begins to take shape.
Hunters Are Part of the Monitoring Infrastructure
CWD surveillance depends on laboratories, wildlife biologists, regulations and disease models.
It also depends on somebody putting a deer in the back of a truck.
That part of wildlife management is easy to overlook. Agencies could never collect comparable numbers of free-ranging deer across a region using staff alone. Hunter harvest creates a biological sampling network spread across private farms, woodlots, wildlife management areas and other places agency biologists could never cover continuously.
That does not make hunters passive sample collectors. Harvest itself changes deer populations. In places where disease risk and deer abundance overlap, that can be part of the management strategy.
Kentucky’s four-day season combines those two roles unusually clearly.
Hunters remove deer. The state gets samples. The samples are tied to locations. Those locations help determine what happens next.
And in western Kentucky, what happens next may depend partly on what wildlife managers continue finding across the river in southwestern Indiana.
Frequently Asked Questions
When is Kentucky’s 2026 special CWD antlerless season?
The special season runs September 25–28, 2026, in CWD Surveillance Zone counties located in Deer Zones 1, 2 and 3.
Can hunters shoot a buck during the special season?
No. The special CWD season is antlerless only. Kentucky states that antlered deer may not be harvested during this special season.
Is CWD testing mandatory?
Yes. Testing is mandatory for deer harvested during the September 25–28 special antlerless season. The deer must be telechecked and the head submitted at an approved CWD Sample Drop-off Site within the surveillance zone.
Why are Henderson, Union and Webster counties included?
Kentucky added the three counties after a hunter-harvested deer from Posey County, Indiana tested positive for CWD in early 2025. Kentucky’s response plan says that deer was harvested less than two miles from the Kentucky border near Henderson County.
Has CWD been detected in Henderson, Union or Webster County?
Kentucky’s published 2025–26 surveillance table lists no positive detections among samples submitted from those three counties. That does not prove the disease is absent; it means CWD was not detected in the animals sampled during that reporting period.
Can people get chronic wasting disease?
CWD has not been shown to infect people, and no human CWD cases have been reported. The Centers for Disease Control and Prevention nevertheless recommends testing deer harvested in CWD areas and says meat from an animal that tests positive should not be eaten.
Why does Kentucky want the harvest location?
A test result becomes much more useful when biologists know where the deer was harvested. Kentucky uses harvest-location information to monitor CWD risk and deer population conditions over time.
Wildlife management across the Tri-State
References & Further Reading
- Kentucky Department of Fish and Wildlife Resources. Kentucky working strategically to limit Chronic Wasting Disease. September 14, 2026.
- Kentucky Department of Fish and Wildlife Resources. CWD Surveillance Zone.
- Kentucky Department of Fish and Wildlife Resources. Chronic Wasting Disease and Kentucky CWD Testing Data.
- Kentucky Department of Fish and Wildlife Resources. Chronic Wasting Disease Response Plan.
- Kentucky Department of Fish and Wildlife Resources. New baiting rules and antlerless-only season aim to help control disease and manage deer populations. June 12, 2025.
- Indiana Department of Natural Resources. Second positive case of chronic wasting disease confirmed in Indiana. February 21, 2025.
- Indiana Department of Natural Resources. Chronic Wasting Disease in Indiana.
- U.S. Geological Survey. Improving Deer Management Through Behavioral Science. 2026.
- Walsh, D. P., ed. Enhanced surveillance strategies for detecting and monitoring chronic wasting disease in free-ranging cervids. U.S. Geological Survey Open-File Report 2012-1036.
- Centers for Disease Control and Prevention. About Chronic Wasting Disease. Updated January 21, 2026.