How JCVCD Helps Keep the Jackson County Expo Comfortable and Bite‑Free
The Jackson County Expo is one of the most active outdoor event spaces in Southern Oregon — home to the County Fair, concerts, festivals, rodeos, and year‑round community gatherings. With thousands of residents visiting the Expo grounds each season, keeping mosquitoes in check is essential for both comfort and public health.
Jackson County Vector Control District (JCVCD) works behind the scenes throughout the year to support the Expo using our Integrated Mosquito Management (IMM) program. Our goal is simple: help ensure residents can enjoy outdoor events without worrying about mosquitoes or mosquito‑borne diseases like West Nile virus.

Monitoring Water Sources Around the Expo
The Expo grounds include ponds, irrigation features, and landscaped areas that can attract mosquitoes if not monitored. Our field technicians:
- Inspect and sample ponds and standing‑water areas around the Expo
- Treat water sources when mosquito larvae are present
- Track seasonal changes that may increase mosquito activity
- Work with Expo staff to identify and eliminate new breeding sites
These routine checks help prevent mosquitoes from developing near high‑traffic event areas.
Greenway Surveillance and Source Reduction
The Bear Creek Greenway runs close to the Expo, and its natural vegetation and water pockets can create ideal mosquito habitat. JCVCD:
- Conducts regular larval surveys along the Greenway
- Treats standing water when needed
- Identifies new sources after storms or irrigation changes
- Monitors mosquito species that thrive in shaded, vegetated corridors
This work helps reduce the number of mosquitoes on and around the Expo.
Adult Mosquito Monitoring & West Nile Testing
Throughout the season, we place traps around the Expo to monitor adult mosquito activity. These traps help us:
- Identify which mosquito species are present
- Detect increases in biting activity
- Collect mosquitoes for West Nile virus testing
- Guide targeted treatment when necessary
Since 2020, 28 mosquito pools have tested positive for West Nile virus in Jackson County. Early detection allows us to respond quickly and protect residents attending outdoor events.
Why This Work Matters
Large outdoor gatherings — concerts, fairs, rodeos, and festivals — attract people, food, lights, and warm evening activity. All of these can also attract mosquitoes.
Our IMM program helps ensure:
- Families can enjoy the County Fair without constant mosquito bites
- Concertgoers can stay outside through the evening
- Vendors and staff can work comfortably
- Events remain safe, enjoyable, and accessible for everyone
The Expo is a centerpiece of community life in Jackson County, and we’re committed to keeping it that way.
How Residents Can Help
If you notice mosquito activity around the Expo or in your neighborhood, you can always contact us:
📞 541‑826‑2199 💻 Submit a service request online
Together, we can keep Jackson County’s outdoor spaces — including the Expo — enjoyable, healthy, and welcoming all season long.