Integrated Mosquito Management

MosquitoIntegrated Mosquito Management (IMM) is a comprehensive mosquito prevention/control strategy designed to reduce mosquito populations and the potential for mosquito borne diseases while maintaining a quality environment. 

IMM is knowledge based and surveillance driven, specifically designed to protect human and animal health by controlling mosquito populations. IMM uses the most efficient and economic procedures and materials available to minimize adverse effects to the environment.

IMM practices form the fundamental approach to mosquito management. Washington County Mosquito Control strives to adhere to the following practices:

  • Public Education and Community Outreach: Educate community and civic groups about mosquito prevention, protection, control and disease transmission.  Public presentations are available upon request, please call 503-846-8722
  • Surveillance:Identify mosquito species and populations trends in order to evaluate control methods
  • Mapping:Utilize maps to monitor sources of larval and adult mosquitoes.  Monitor control operations, mosquito species geographic distribution and composition
  • Action thresholds:Method used to trigger control measures
  • Source Reduction:Involves modification of mosquito larval habitats, making site unsuitable for development.Typically the most effective and economic method of mosquito control but may not be practical for many habitats
  • Biological Control:Employ natural predators of mosquitoes to compliment other methods of control
  • Chemical Control:Utilize target specific public health pesticides based on surveillance data
  • Monitoring for Efficacy/Resistance:Identify success of any control measures taken and to minimize the risk of mosquitoes becoming resistant to chemicals used
  • Recordkeeping:Maintaining records according to state law