Proposed Dates of Use: March 02, 2026 - May 01, 2026; as weather conditions and operational factors permit.
Street Address/Site Name: Covell Blvd, Russell Blvd, Mace Blvd, Pole Line Road, F Street, Alhambra Drive, Danbury Street, Drummond Ave, Shasta Drive, Lake Blvd, Denali Drive, Dennison Road, Anderson Road, Cowell Blvd, Moore Blvd, Lillard Drive, Research Park Drive, Chiles Road, Richards Blvd, Cottonwood Drive, 2nd Street, 5th Street, J Street, East 8th Street, West 8th Street, West 14th Street, Villanova Drive.
Detailed Location of Application Site: Landscape medians in these locations, including the roundabout at Cowell/Chiles/Drummond.
Posting and Notification: Site notifications will be posted at least 48 hours before application at site entrances and will remain posted for 24 hours, and via the pesticide application electronic notification system.
Pesticide Products: Prodiamine 65WDG or Esplanade 200 SC, Cheetah Pro or Lifeline, & Homeplate
Product (W/ active ingredients): Prodiamine 65WDG (Prodiamine 65%) or Esplanade 200 SC (Indaziflam 19.05%)
EPA Reg #: 53883-429 or 432-1516-AA
Pesticide Type: Herbicide
City Use Type: Tier II. Less Hazardous. Less Restrictive.
Product (W/ active ingredients): Cheetah Pro or Lifeline, Glufosinate Ammonium 24.5%
EPA Reg #: 228-743 or 70506-310
Pesticide Type: Herbicide
City Use Type: Tier III. Least Hazardous. Least Restrictive.
Product (W/ active ingredients): Homeplate, Caprylic Acid 44% Capric Acid 36%
EPA Reg #: 67702-54-70051
Pesticide Type: Herbicide
City Use Type: Tier III. Least Hazardous. Least Restrictive.
Target Pests: Various Broadleaf Weeds and Annual Grasses
Justification for Use: The use of herbicides are justified as there is a need to safely and effectively manage the emerging vegetation and prevent seed set. The medians are filled with decomposed granite or compacted dirt, which can become overgrown with vegetation during the wet season. Safety concerns arise with operators using mechanical tools which may unintentionally scatter median material or debris toward vehicle traffic. Additionally, an increase risk is placed on operators working alongside heavy traffic. The use of Prodiamine/Indaziflam, would help manage the emerging weedy vegetation from the site’s seedbank. Glufosinate Ammonium based herbicides are considered a least-toxic alternative to the use of Glyphosate or similar Tier 1 chemicals that would typically be recommended for this application.
Explanation of IPM Methods Used: Staff and contractors employ primarily non-chemical control measures at the majority of our right-of-way including mowing, trimming, hoeing, and hand pulling where/when feasible. Steaming has been explored with mixed results and risk to operators while accommodating equipment near heavy traffic areas. In 2025, the addition of Homeplate with Cheetah Pro provided longer control for the medians when these products were applied at those locations.
Strategies to Prevent Future Applications: The primary strategy to reduce the need for future herbicide applications is to manage the emerging vegetation and preventing seed-set. Included in this strategy, is the addition of a contact “burn down” herbicide “Homeplate” which will increase the effectiveness of Glufosinate Ammonium. The introduction of a pre-emergent product (i.e. Prodiamine 65WDG or Esplanade 200 SC) will help manage the seedbank. This will require at least one herbicide application annually. Through well-timed herbicide applications, these sites are expected to experience a reduction in future weed infestations. Additionally, hardscaping options are being explored in certain areas, but this may not be feasible for all sites.
More information on the IPM Program, including the current Policies and Procedures guidance, can be found on the City's webpage: Integrated Pest Management
