Officials confirmed the first detection of the invasive Aedes aegypti mosquito in Idaho, which can spread more than 50 different diseases, including Zika and dengue.
NAMPA, Idaho — Officials have identified an invasive species of mosquito in Nampa. A single Aedes aegypti, also known as the yellow fever or Egyptian mosquito, was recovered by the Canyon County Mosquito Abatement District on Aug. 11.
The district first visually identified the species, then sent it in for DNA testing in order to confirm. A positive result confirmed the sample as Aedes aegypti on Sept. 17, 2025.
Canyon County Mosquito Abatement District Director Jim Lunders said this was the first known detection of the species in Idaho.
The mosquitoes are native to Africa and can transmit over 50 different diseases, including Zika and dengue.
No additional mosquitos of this kind were found in the surrounding areas, according to the Canyon County Mosquito Abatement District, although officials will continue to monitor through 2026.
“The possibility of Ae. aegypti establishing reminds us of the importance of the public taking an active role in minimizing potential habitats around their home,” Lunders said.
These mosquitoes bite at all times of day and breed in standing water. In order to protect against mosquitoes, people should monitor spaces like flower pots, birdbaths, unused pools and hot tubs, clogged gutters and old tires.
Canyon County residents who are experiencing mosquito problems can report them online or by calling 208-461-8633.
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