Mosquito Control


The Regional District's mosquito control program has been in place since 1974. From March to September each year, between 300 and 350 properties are checked for mosquito larva in Areas "A", "B", "C", "D", "F", "G", "H" and "I" as well as Osoyoos, Oliver, Penticton, and Summerland.

Regional District technicians check stagnant (still) water bodies for mosquito larvae as well as for the predators that eat the larvae. Once each larval/predator monitoring is complete, larviciding sprays are applied where required.


In accordance with B.C. Ministry of Environment habitat guidelines, the RDOS uses Vectobac 200G, a 'non-toxic', 'organic' pesticide to treat for mosquito larva. 

The Regional District of Okanagan Similkameen has worked to implement integrated pest management (IPM) principles and has developed appropriate procedures to ensure the best control measures possible. For more information, please click on the links below.



RDOS Pest Management Plan: 
**DRAFT PLAN** RDOS Pest Management Plan 2023 - 2028
MAP NORTH RDOS Mosquito Control Area
MAP SOUTH RDOS Mosquito Control Area 
MAP WEST RDOS Mosquito Control Area
MAP CENTRAL RDOS Mosquito Control Area 
RDOS Pest Management Plan 2018 - 2023
Mosquito Control Program (MCP) Information:
Information Sheets Larvicide:  
  1. Federal Government Sheet
  2. VectoBac Information

RDOS Mosquito Control Program - Year End Reports:

2020 Year End Report

2019 Year End Report

2018 Year End Report



Presentations and Media: 
  CaptureCindy R McGuireREsized
West Nile Virus and Lyme Disease Information:
For Additional Inforamtion: 
For more information on the Mosquito Control Program, to obtain a copy of Mosquito Control Principles & Mosquito Control Policies or to report an infestation, please call the Regional District office at 250-490-4110 or email