Mosquito Sampling Collections

Larval Mosquito Collections

Larvae sampling is conducted at over 175 sites documented throughout the county, including perminate waters, semi-perminate waters, retention ponds, sewage pump stations, ditches, stagnant pools, and human-created artificial water sources.  In addition, residents reporting mosquito complaints or areas of concern are investigated as they arise.

Collections that produce high larva counts trigger a control response based on the program's Integrated Pest Management (IPM) Plan. Treatment of the site includes using backpack sprayers dispensing the appropriate control material approved for use on the particular mosquito species and site.

Keep scrolling down to learn more about our adult sampling program.

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Adult Mosquito Sampling
Throughout the mosquito season (May-September), adult mosquitoes are collected using 3 different types of traps.

Collections are taken to the DEP lab to determine if the moquitoes are infected with West Nile Virus.

Assessments are then made based on pre-determined thresholds to determine if there is a significant health risk present that would warrant an adult mosquito spray event.

Traps locations are shown on the map below and change daily. On the map, zoom in to location, place mouse pointer over site and click for more information. A larger map is also available.