1-_PCR_for_Garlon_4_Ultra_Cut_Stem-2026_SMCP_6_G4U_CutStemv5.pdf

Produced by On Point Land Management Inc., 1300 Sirah Court, Ukiah, CA 95482 Ph. (415) 235-0987

GARLON 4 ULTRA – CUT STEM

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Owner: San Mateo County Parks No. 2026_SMCP_6_G4U_CutStem 455 County Center, 4th Floor Redwood City, CA 94063 CONTACT: Elena Wolff (650) 599-1346 Effective Date: 2/2026 – 2/2027

SITE DESCRIPTION

Parks & Open Space, Habitat Management and Right-of-Way Areas. Selective invasive weed management in 12 park and open space areas for habitat management and fire safety. Total acreage to be treated is estimated to be 374 acres (exact locations on back page). For aquatic option, see recommendation 2026_SMCP_12_Vast_CutStem.

TARGET PESTS: Woody shrubs and trees. MIX PRODUCT WITH OIL DILUENT.

Material (Add to tank in order) Rate per 100 gal Rate per gal (handhelds) Volume/Acre

(1) Garlon 4 Ultra Herbicide* – 62719-527 50 gallons 64 oz.

Variable – Basal Bark – Cut Stem (2) Competitor MSO Diluent – 2935-50173 50 gallons 64 oz.

(3) BasOil RED dye (oil soluble) 1 quart 0.3 oz.

* Do not exceed maximum use rate of 8 quarts (256 oz.) of product per acre per year in non-cropland sites or 2 quarts of Garlon 4 in grazed rangeland areas. Applicator shall calculate stems per acre prior to application.

** Oil – Garlon mixture requires vigorous agitation after mixing to prepare an even solution.

HAZARDS – RESTRICTIONS

o OBSERVE ALL LABEL PRECAUTIONS o KEEP SPRAY SOLUTION OUT OF LAKES, RIVERS, STREAMS o DO NOT ALLOW DRIFT TO CONTACT GRAPES, VEGETABLES AND OTHER DESIRABLE LANDSCAPE PLANTS o WORKER RE-ENTRY INTERVAL: KEEP WORKERS, PEOPLE AND PETS OFF TREATED AREAS UNTIL DRY o NO APPLICATIONS WHEN FORECAST OF RAIN WITHIN 24 HOURS OF PLANNED APPLICATION o DO NOT APPLY IN TEMPERATURES EXCEEDING 80 DEGREES F OR IF HIGH TEMPERATURES ARE FORECAST

WITIN 24 HOURS OF APPLICATION

APPLICATION NOTES

This recommendation is for cut surface and low volume basal bark treatments on woody plants with an oil soluble herbicide with an oil diluent. The oil diluent helps the product penetrate wood and offers an alternative to physical cutting to access the cambium tissues. CUT STEM (drill/frill/girdle): Cut woody tissue to access the cambium and apply herbicide; allow to run over outside perimeter of bark after cutting. Limit application to cambium tissue and exterior bark, not the interior heartwood. Low pressure (20-30 psi) application equipment, such as backpack or hand applicators, with solid cone nozzles are recommended.

Field calibrate rates with stem density to keep application rates within label allowances and use metered application equipment if necessary. LOW VOLUME BASAL BARK: Spray 12-15” of lower basal stems that are <6 in. dia. (trunks) thoroughly on all sides with a solid cone or fixed fan nozzle. Use reduced rates – 25-30% v/v Garlon 4 Ultra with basal applications.

This recommendation covers pesticide applications within habitats for federally and state listed endangered species. A qualified biologist/staff representative that can identify all rare plant and wildlife species present shall supervise all applications of pesticide. In areas where endangered species occur, buffer herbicide applications by 40 yds when wind is blowing towards occupied habitat. A 60’ buffer shall be maintained from aquatic sites for CA red-legged frogs in all designated critical and non-critical habitat sections defined in the 2001 Stipulated Injunction. Consult project maps for locating such areas.

This pest control application incorporates all United States Environmental Protection Agency voluntary and injunction specified interim endangered species pesticide protection measures for San Mateo County including the 2001 Stipulated Injunction for CA Red-legged frogs. I certify that alternative methods and mitigation measures that will substantially reduce adverse environmental impacts have been considered and adopted as necessary and feasible.

Advisors Signature Mark A. Heath, PCA License No. 118861 February 24, 2026

[V.5 Updated 7/27/2026]

Produced by On Point Land Management Inc., 1300 Sirah Court, Ukiah, CA 95482 Ph. (415) 235-0987

GARLON 4 ULTRA – CUT STEM

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Edgewood French Broom Glenloch/Sylvan Way 1 acre 05S04W Sec. 26

Fitzgerald Marine Reserve Eucalyptus As necessary, for winter storm fall <0.25 acres 05S06W Sec. 3

Huddart French Broom Kings Mtn Rd., TM 41 2 acres

06S04W Sec. 9 French Broom Archery Range 0.5 acre

Junipero Serra Park Coyote brush/Eucalyptus Meadow View Picnic Area 3 acres

04S05W Sec. 4, 5 French Broom Fuel Break areas 5 acres

Memorial Park Acacia Wurr Road <1 acre 07S04W Sec. 34

Pillar Point Bluff Cotoneaster Jean Lauer Trail, TM 13-15 7 acres

05S06W Sec. 10* Cotoneaster/Coyote Brush

Jean Lauer Trail TM 15-16 1 acre

Quarry Park/Miranda Surf Eucalyptus Moro Ave/S. Park Boundary 1 acre 05S06W Sec. 13

Acacia/Eucalyptus S. Ridge & Vista Pt. Trails, Dolphine/Miranda East Fire Roads

75 acres

05S05W Sec. 7, 18

French Broom S. Ridge Trail/Fire Road; Vista Pt Trail 30 acres

Sam McDonald Park French Broom Ridge Fire Road 119 07S04W Sec. 23,25,26

San Bruno Mountain Acacia/Eucalyptus Old Guadalupe Trail/McKesson Parcel 20 acres

03S05W Sec. 5, 8, 9, 16, Native brush and gorse control

Mountain-wide 52 acres

Tree-of-Heaven Buckeye Cyn. – Trinity Rd. 1 acre

Brooms/Cotoneaster/Euc Owl/Buckeye Ridges/Quarry, Saddle 14 acres

Sanchez Adobe Eucalyptus As necessary, for winter storm fall <0.25 acres 04S06W Sec. 14

San Pedro Valley Acacia/Eucalyptus Weiler Ranch Road, Main entrance 13.5 acres

04S06W Sec 13, 15, 24* French Broom/Cotoneaster

Weiler Ranch Rd understory 3.5 acres

French Broom/Cotoneaster

NW park boundary, scrub 5 acres

Wunderlich Blue Gum Eucalyptus Bear Gulch Rd., N. Section 10 acres 06S04W Sec. 22

French Broom End of Ranch Road 1 acre 06S04W Sec. 23

French Broom Upper Skyline Trail 3 acres 06S04W Sec. 22

French Broom Meadows Trail, TM 18-22 5 acres 06S04W Sec. 23

French Broom Bear Gulch Rd., TM 1-18 5 acres 06S04W Sec. 22 Buffers required for CA Red-Legged Frog (CRLF) A 60’ buffer shall be maintained from aquatic sites for CA red-legged frogs in all designated critical and non-critical habitat sections defined in the 2001 Stipulated Injunction and listed in the above table. A reduced 15’ buffer applies when a certified applicator is making a spot treatment with hand-held equipment to state-designated invasive weeds within these specified sections. This reduced buffer does not apply to vegetation management projects for native brush control.