Mosquito Control

Arapahoe County's Open Spaces Department handles mosquito abatement on county-owned property only. The Open Spaces Operations Division uses Bacillus thuringiensis (Bt), a naturally-occurring bacterium, on standing bodies of water to minimize local mosquito populations.

If you are concerned about mosquitoes in your community, please contact your local city or town, special district, HOA or the Arapahoe County Public Health Department.