Suffolk’s Mosquito Control Program• Suffolk’s Land
– 402 square miles (Rural Farmland, Downtown, and Suburban)
– ½ of the Great Dismal Swamp
• Mosquito Control Employees– 1 Superintendent – 2 Biologists– 4 Technicians– 3 to 4 Part Time Employees
• 1 to 2 Biology Interns • 1 to 2 Spray Technicians
Suffolk’s Mosquito Control Program• Mosquito Surveillance
– Adult Surveillance Traps• CDC light traps• BG Sentinel traps• Gravid Traps
– 44 Suffolk Trap Sites – 6 Great Dismal Swamp Trap Sites– 965 Trap Nights
• Arboviral Surveillance – Vectests (New Program)
• In house mosquito testing – Sentinel Chicken Program (20)
• Blood samples tested by DCLS
Suffolk’s Mosquito Control Program
• Operations– Larvacide
• Dry • Liquid
– Adulticide • Ground • Aerial
The Calm Before . . .
• Precipitation – Low in the Winter
– Low in the Spring– Low and evaporating during the Summer
• Mosquito Population – Below average mosquito populations from Early
Spring into the Summer
Species of Interest
• Ae. vexans– Spring (April‐May) 1,482– Summer (June‐Aug) 2,503– Fall (Sept‐Nov) 45,735
• Cs. melanura– Spring (April‐May) 9,643– Summer (June‐Aug) 11,238– Fall (Sept‐Nov) 18,181
• Oc. canadensis– Spring (April‐May) 6,127– Summer (June‐Aug) 293– Fall (Sept‐Nov) 8,094
• Ps. ferox– Spring (April‐May) 3– Summer (June‐Aug) 617 – Fall (Sept‐Nov) 18,074
• Oc. Aurifer was also seen extending it’s habitat from the
swamp and into the Downtown area
Ps. ferox variation • Found at three different locations
• Regency Estates• Golden Sunset • Clay Hill
Sentinel Chicken Program
• 3 positive EEE results– 7/18/11 Wonderland
– 7/25/11 Freeney– 8/29/11 Wonderland
– No WNV Positives
– 1 EEE positive
VecTest
Program
Positive VecTests? Now What?
• Confirmation by PCR– WNV
• Easy Process– EEE
• Unknown– 1st
known EEE positive using VecTests
– No one has had to deal with this process
• Select Agent Confirmation– Questions to Originating Organization – Confirmation of Safe Handling