It’s mosquito season and the Western treehole mosquito (Aedes sierrensis), is particularly active now. This species prefers water-filled tree cavities as it’s larval habitat and are most commonly found in areas with abundant oak and madrone trees. They bite aggressively and are active during the day. As a result, this species can be a major nuisance and generates frequent public service requests at our District. Western treehole mosquitoes don’t typically carry viruses that can be transmitted to people, but they are a principal vector of canine heartworm disease. If you are noticing mosquito larvae on your property or are being bitten by adult mosquitoes, you can contact our District office at 541-826-2199 or submit a request online at JCVCD Service Request to schedule an inspection!
