3-_PCR_for_Vastlan_aquatic_Cut_Stem-2026_SMCP_12_Vast_CutStemv3.pdf

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

VASTLAN – AQUATIC CUT STEM

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Owner: San Mateo County Parks No. 2026_SMCP_12_Vast_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 AQUATIC Areas. Selective invasive weed management in 8 park and open space areas for habitat management and fire safety. Total acreage to be treated is estimated to be 238 acres (see back page).

TARGET PESTS: Non-native and native woody shrub and tree species. Mix product with clean water

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

(1) Vastlan Herbicide* – 62719-687 50 gallons 64 oz. Variable – Cut Stem Treatments (2) Dye (if necessary) 1 quart 0.3 oz.

* Do not exceed maximum use rate of 9 quarts per acre per year on non-crop sites & 6 quarts per acre per year on aquatic/forest sites.

HAZARDS – RESTRICTIONS

o OBSERVE ALL LABEL PRECAUTIONS o OBSERVE REDUCED USE RATES IN RANGE AND PASTURE 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 OBERVE LABEL SETBACKS AND LIMITATIONS FOR USE AROUND POTABLE WATER/IRRIGATION INTAKES

APPLICATION NOTES

This recommendation is for terrestrial and aquatic cut stem treatments on woody dicot plants. Cut woody stems and then IMMEDIATELY flow solution around the cambium tissue around the perimeter of the stump. Repeat application until no additional solution is absorbed by the plant tissue but before the point of runoff. If there is a delay between cutting the stem and before an application can be made, recut the stem before applying the herbicide. Avoid over-spray to exterior bark or interior heartwood. Low pressure (20-30 psi) application equipment, such as backpack or hand applicators, for all applications.

This recommendation covers any direct-to-cambium application. Alternative methods to cutting the entire woody stem include drilling, frilling and girdling with any hand or powered mechanical tool to deliver direct access to the cambium tissues where herbicide is to be applied. TIMING – perform applications during periods of the plants active growth cycle for best results, avoid periods when plants are dormant or stressed (such as during drought conditions).

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. A reduced 15’ buffer applies when a certified applicator is making an application with hand-held equipment to invasive weeds. 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.3 Updated July 27, 2026]

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

VASTLAN – AQUATIC CUT STEM

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

Huddart

French Broom Kings Mtn Rd., TM 41 2 acres 06S04W Sec. 9

French Broom Archery Range 0.5 acre

Junipero Serra Park

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

Eucalyptus Meadow View Picnic Area 2 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

Blue Gum Eucalyptus Moro Ave/S. Park Boundary 1 acre 05S06W Sec. 13

Blue Gum 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

San Bruno Mountain

Native brush & gorse E. Saddle; Hillside/Juncus Ravine, Owl/ Buckeye, Ridge Tr, McKesson

49 acres

03S05W Sec. 5, 8, 9, 16, 17 Eucalyptus McKesson Parcel 9 acres

Brooms Owl/Buckey Ridges/Quarry/Saddle 12 acres

San Pedro Valley

Blue Gum Eucalyptus Weiler Ranch Road 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.