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Wide Area Larvicide Treatment scheduled for September 1st, 2023

May contain: neighborhood, intersection, road, city, outdoors, and urban

Due to elevated mosquito abundance, the District will be conducting a wide area larval control mosquito application on September 1st., 2023. The spray application will be conducted between the hours of 3:00 a.m. to 6:00 a.m. at the following location: the residential neighborhood located in the City of Riverside, South of Magnolia Blvd., and North of the 91 Freeway, situated between Van Buren Blvd., and Harrison St. Please see attached images for exact spray route. 

                The District will be treating this area with Vectobac WDG (EPA Reg. 73049-56) on September 1st., 2023. This control product has been approved for use in mosquito control by the US EPA and is OMRI listed, meaning it may be used in the treatment of certified organic production or food processing and handling according to the USDA National Organic Program regulations.  We’ve dedicated significant efforts towards implementing Integrated Vector Management efforts within this area. Our primary focus of control is to target the immature mosquito in the larval stage of its life cycle before it matures into a flying adult.  Our most effective approach for treating the small concealed stagnant water sources that provide mosquito breeding habitat within this neighborhood is through a wide area larval control application using a truck-mounted fogger. Signs will be posted on August 30th., 2023 within the neighborhood to notify the public of our activities.  Information regarding the treatment will be posted on our website at If there are any questions or concerns, please contact the District at 951-340-9792. 


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