Proposed Dates of Use: April 15th, - April 30th, 2024; as weather conditions and operational factors permit
Street Address/Site Name: North Davis Uplands, South Fork Preserve, Mace Ranch Park Passive Recreation Area, Howat Ranch, Wildhorse Ag Buffer, & Cannery Hedgerow.
Detailed Location of Application Site: Various locations throughout managed areas, including: trails, developed parking areas, kiosks and seating areas, roads, fence lines, access points, habitat areas.
Posting and Notification: Site notifications will be posted at least 48 hours before application at site entrances and will remain posted for 24 hours post-treatment, and via the pesticide application electronic notification system.
Product (W/ active ingredients): Telar - Chlorsulfuron2-Chloro-N-[(4-methoxy-6-methyl1,3,5-triazin-2-yl)aminocarbonyl]benzensulfonamide 75% EPA Reg #: 432-1561 Pesticide Type: Herbicide City Use Type: Tier 2. Less Hazardous. Less Restrictive
Product (W/ active ingredients): CAPSTONE - Aminopyralid 2.22% Triclopyr 16.22% EPA Reg #: 62719-572 Pesticide Type: Herbicide City Use Type: Tier 2. Less Hazardous. Less Restrictive
Product (W/ active ingredients): LIFELINE - Glufosinate-ammonium 24.5% EPA Reg #: 70506-310 (CAS No.77182-82-2) Pesticide Type: Herbicide City Use Type: Tier 3. Least Hazardous. Least Restrictive
Product (W/ active ingredients): Milestone - Triisopropanolammonium salt of 2-pyridine carboxylic acid, 4-amino-3,6-dichloro- 40.6% EPA Reg #: 62719-519 Pesticide Type: Herbicide City Use Type: Tier 2. Less Hazardous. Less Restrictive
Product (W/ active ingredients): MSO Surfactant: Methylated vegetable oil, alcohol ethoxylate, phosphatidylcholine 100% CAS No. 97281-47-5 Pesticide Type: Herbicide City Use Type: Tier 2. Less Hazardous. Less Restrictive
Target Pests: Various grasses, forbs, & small woody vegetation
Justification for Use: Some weeds within these locations are not able to be effectively managed mechanically, or by hand due to their growth characteristics or proximity to desirable plants. Mowing, string trimming, and cultivating the vegetation in these specific sites are not effective because the plant's residual material promotes new growth or are comprised of woody root structures.
Explanation of IPM Methods Used: Open Space implements nonchemical control measures including mowing, trimming, hoeing, hand pulling and solarization throughout these various sites. In 2023, grazing was re-incorporated as a management tool for larger sites to promote growth of native vegetation and improve soils, while suppressing undesirable vegetation.
Strategies to Prevent Future Applications: The strategy includes preventing seed-set and future infestation of emerging vegetation with well-timed herbicide applications.
More information on the IPM Program, including the current Policies and Procedures guidance, can be found on the City's webpage: Integrated Pest Management
