Montgomery Parks Integrated Pest Management Program & Pesticide Use

Integrated Pest Management Program and Pesticide Use

Montgomery Parks manages more than 37,000 acres of parkland including 420 parks, 275 playgrounds, 362 athletic fields, and many other amenities. The Department follows Integrated Pest Management (IPM) principles to steward resources and protect them from pests (weeds, insects, animals, and diseases) that may harm people or plants, impair function, and deteriorate infrastructure. IPM means managing pests by combining multiple strategies and techniques such as mechanical removal of pests, cultural methods to improve soil and plant health, conserving and introducing beneficial biological controls, and using pesticides.

The Parks Department does not use pesticides for cosmetic purposes. Pesticides are used as a last resort to control noxious and invasive pests, maintain safe and playable athletic fields and courts, and prevent significant economic damage, including degradation of park infrastructure.

Staff who apply pesticides and fertilizers are certified and registered with the Maryland Department of Agriculture. Montgomery Parks is committed to balancing the demand for recreation while protecting and conserving our valuable natural and cultural resources to meet the needs of current and future generations.

What is Montgomery County Code 33B?

County Code Chapter 33B went into effect July 1, 2016.  The code presents guidelines for pesticide use in Montgomery County, including on county property and parkland. The goal of the code “is to inform the public about pesticide applications and minimize the use of pesticides for cosmetic purposes, while not restricting the ability to use pesticides in agriculture, for the protection of public health, or for other public benefits.”  Learn more about Montgomery County’s pesticide law.

What is Montgomery Parks doing to comply with the law? 

Montgomery Parks continues to implement IPM strategies to ensure pesticides are used as a last resort.   Montgomery Parks manages all playgrounds, community gardens and common lawn areas within local parks without the use of pesticides.  In 2016, Montgomery Parks designated ten pesticide-free parks. In 2019, the program expanded to 45 pesticide-free parks and in 2022, the program expanded further to include 55 pesticide-free parks. To manage pests in parks that are designated pesticide-free, staff use alternative methods, such as hot foam, string trimming, mechanical weed removal, and products approved for use by Montgomery County Code 33B. The Montgomery County Department of Environmental Protection examples of products allowed in pesticide-free parks under the law.

The below table includes a schedule of upcoming pesticide applications.*  The list is updated to provide at least 48-hour notice for applications.

*Montgomery Parks staff make every effort to notify the community on this webpage when a pesticide application is scheduled in a public area. Dates of applications may change or be canceled due to weather; also, occasional emergency applications may be needed.

Park Name	Planned Application Date Range	Planned Application Time	Area To Be Treated	Application Details
Meadowbrook Local Park	2/11-3/31	7 a.m. – 3 p.m.	Between Beach Drive and Rock Creek heading west from Boundary Bridge	AquaMaster will be applied to non-native invasive plants (Lesser celendine) to restore habitat and protect ecosystem.
Cabin John Regional Park	2/11-3/31	7 a.m. – 3 p.m.	Forested area between the baseball fields south of Gooseneck Trail, primarily along the creek corridor/drainage	AquaMaster will be applied to non-native invasive plants (Lesser celendine) to restore habitat and protect ecosystem.
Little Bennett Regional Park	2/17-3/31	7 a.m. – 3 p.m.	Both sides of the Western Piedmont Trail, north of first large bridge on the Hyattstown side and the area just east of the second large bridge	AquaMaster will be applied to non-native invasive plants (Lesser celendine) to restore habitat and protect ecosystem.
Germantown Town Center Urban Park	3/3-3/7	6:30 a.m. – 2 p.m.	Large landscape beds	Snapshot will be applied to annual grass weeds to protect plantings.
Hoyles Mill Conservation Park	3/3-3/21	7 a.m. – 5 p.m.	Forested area along the west side of Hoyles Mill Trail, north of the WSSC pupm station and south of the main bridge over the river	RoundUp Custom and/or AquaNeat will be applied to non-native invasive plants (multiflora rose, autumn olive, bittersweet, etc.) to restore habitat and protect ecosystem.
Maydale Conservation Park	3/3-3/28	7 a.m. – 3 p.m.	Along the Pond Loop Trail in the floodplain and along creek edge	AquaMaster will be applied to non-native invasive plants (Lesser celendine) to restore habitat and protect ecosystem.
Brookside Gardens	3/10-3/14	6:30 a.m. – 3 p.m.	Aquatic Gardens (landscape beds), Fern Gate and fence line	AquaNeat will be applied to non-native invasive plants to restore habitat and protect ecosystem.
South Germantown Recreational Park	3/10-3/14	6:30 a.m. – 2:30 p.m.	Landscape beds	Snapshot will be applied to annual grass weeds to protect plantings.
Brookside Gardens	3/10-3/17	7 a.m. – 12 p.m.	Woodland Walk	AquaNeat will be applied to non-native invasive plants (Lesser celendine) to restore habitat and protect ecosystem.
Germantown Town Center Urban Park	3/10-3/21	6:30 a.m. – 2 p.m.	Landscape beds	Snapshot will be applied to annual grasses and weeds to protect plantings.
South Germantown Recreational Park	3/10-3/21	6:30 a.m. – 2:30 p.m.	Landscape beds and tree rings	Cheetah Pro will be applied to annual grass weeds to protect plantings.
Wheaton Regional Park	3/10-6/20 (Tuesdays)	7 a.m. – 3 p.m.	North of Alpert Ln., west of Kemp Mill Rd., near the maintenance yard	AquaMaster will be applied to woody weeds to restore habitat and protect ecosystem.
Paint Branch Stream Valley Park	3/12-3/15	7 a.m. – 5 p.m.	Along DOT trail on Good Hope Rd., in park land	Garlon 3A will be applied to invasive weeds to restore habitat and protect ecosystem.
Brookside Gardens	3/13	2 p.m. – 4 p.m.	Conservatory	Isarid will be applied to insect pests to protect plantings.
Brookside Gardens	3/17	7 a.m. – 12 p.m.	Along Woodland Walk (around boardwalk and Taxodium tree)	AquaNeat will be applied to non-native invasive plants (Lesser celendine) to restore habitat and protect ecosystem.
Brookside Gardens	3/17-3/21	6:30 a.m. – 3 p.m.	Landscape beds: Glenallan Ave., peninsula, 1500 Gate, 40th Grove and woods by Conservatory parking lot	AquaNeat will be applied to non-native invasive plants to restore habitat and protect ecosystem.
Olney Manor Recreational Park	3/17-3/28	6 a.m. – 2:30 p.m.	Athletic fields 1, 2, 3, 4, 5	Greenyard Prodiamine will be applied to broadleaf weeds to support plant or turf health.
Northwest Branch Recreational Park	3/17-3/28	6 a.m. – 2:30 p.m.	Athletic fields 1, 2, 3, 5	Greenyard Prodiamine will be applied to broadleaf weeds to support plant or turf health.
Fairland Recretional Park	3/17-3/28	6 a.m. – 2:30 p.m.	Athletic field 2	Greenyard Prodiamine will be applied to broadleaf weeds to support plant or turf health.
Olney Manor Recreational Park	3/17-3/28	6 a.m. – 2:30 p.m.	Athletic fields 1, 2, 3, 4, 5	Dylox will be applied to insect pests to support plant or turf health.
Northwest Branch Recreational Park	3/17-3/28	6 a.m. – 2:30 p.m.	Athletic fields 1, 2, 3, 5	Dylox will be applied to insect pests to support plant or turf health.
Fairland Recretional Park	3/17-3/28	6 a.m. – 2:30 p.m.	Athletic field 2	Dylox will be applied to insect pests to support plant or turf health.
Locust Grove Nature Center	3/17-3/28	7 a.m. – 3 p.m.	Pasture between Democracy Blvd. and parking lot for nature center and tennis facility	Garlon 3A will be applied to non-native invasive plants (Mugwort) to restore habitat and protect ecosystem.
Black HIll Regional Park	3/17-3/28	7 a.m. – 3 p.m.	Pasture on hillside behind nature center	Garlon 3A will be applied to non-native invasive plants (Mugwort) to restore habitat and protect ecosystem.
Agricultural History Farm Park	3/17-3/28	7 a.m. – 2 p.m.	Mulched beds	Snapshot will be applied to invasive weeds to protect plantings.
Rock Creek Regional Park	3/17-3/28	7 a.m. – 2 p.m.	Mulched beds	Snapshot will be applied to invasive weeds to protect plantings.
Laytonia Recreational Park	3/17-3/29	7 a.m. – 2 p.m.	Mulched beds	Snapshot will be applied to invasive weeds to protect plantings.
Brookside Gardens	3/19-3/20	8 a.m. – 3 p.m.	Turf areas	Stonewall 0-0-7 will be applied to selective grass and broadleaf weeds to support plant or turf health.
Brookside Gardens	3/20	2 p.m. – 4 p.m.	North Conservatory	Isarid will be applied to insect pests to protect plantings.
South Germantown Recreational Park	3/24-3/28	6:30 a.m. – 2:30 p.m.	Along road and within central park area	Cheetah Pro will be applied to annual grass weeds to protect plantings.
Cloverly Local Park	3/24-3/28	7 a.m. – 5 p.m.	Future reforestation area to the east of the tennis court and baseball field	Garlon 3A will be applied to invasive weeds to protect plantings.
Germantown Town Center Urban Park	3/24-4/4	6:30 a.m. – 2:30 p.m.	Landscape beds	Prosecutor Pro will be applied to annual grass weeds to protect plantings.
Germantown Town Center Urban Park	3/24-4/4	6:30 a.m. – 2:30 p.m.	Landscape beds	Snapshot will be applied to selective grass and broadleaf weeds to protect plantings.
Peachwood Neighborhood Park	3/24-4/4	6:30 a.m. – 2:30 p.m.	Mulched beds	Snapshot will be applied to invasive weeds to protect plantings.
Burtonsville Local Park	3/24-4/4	6:30 a.m. – 2:30 p.m.	Mulched beds	Snapshot will be applied to invasive weeds to protect plantings.
Northwest Branch Recreational Park	3/24-4/4	6:30 a.m. – 2:30 p.m.	Mulched beds	Snapshot will be applied to invasive weeds to protect plantings.
Royce Hanson Conservation Park	3/24-5/1	7 a.m. – 3 p.m.	Area at the end of the main driveway, adjacent to the old home foundation/end of the driveway	Pathfinder II and/or Garlon 3A will be applied to invasive weeds (Ailanthus altissima) to restore habitat and protect ecosystem.
Martin Luther King Recreational Park	3/25-3/27	8 a.m. – 12 p.m.	Soccer field 3	Tribute Total will be applied to broadleaf weeds for player safety.
Brookside Gardens	3/27	3 p.m. – 5 p.m.	North Conservatory	Isarid will be applied to insect pests to protect plantings.
Brookside Gardens	3/31	8 a.m. – 3 p.m.	Service Hill Three Bio Swales	Snapshot will be applied to selective grass and broadleaf weeds to maintain proper function.
Washington Grove Conservation Park	3/31-4/4	7 a.m. – 5 p.m.	Western boundary of park	RoundUp Custom will be applied to non-native invasive plants (Bradford pear) to restore habitat and protect ecosystem.
Brookside Gardens	3/31-4/4	7 a.m. – 3 p.m.	Upper Rain Garden	Halo75 WDG will be applied to non-native invasive (Equisetum avense) to restore habitat and protect ecosystem.
Brookside Gardens	3/31-4/4	6:30 a.m. – 3 p.m.	Landscape beds: Aquatic Gardens, Natural Rock Garden, 40th Grove, and woods by Conservatory parking lot	AquaNeat will be applied to invasive weeds to restore habitat and protect ecosystem.
Cloverly Local Park	3/31-4/4	7 a.m. – 5 p.m.	Forested area east of tennis courts an d baseball field	Garlon 3A will be applied to invasive weeds to protect plantings.
Wheaton Regional Park	3/31-4/11	7 a.m. – 3 p.m.	Forested area in northeast section of park (north of maintenance yard)	AquaMaster will be applied to invasive weeds to restore habitat and protect ecosystem.
Hoyles Mill Conservation Park	3/31-4/11	7 a.m. – 5 p.m.	Natural area north of the WSSC pump station, west of Hoyles Mill Rd., (south of the river)	Garlon 4 and AquaMaster will be applied to invasive weeds to restore habitat and protect ecosystem.
Greenwood Local Park	3/31-4/11	6 a.m. – 2:30 p.m.	Mulched landscape beds, tree rings	Snapshot will be applied to broadleaf weeds to protect plantings.
Olney Mill Neighborhood Park	3/31-4/11	6 a.m. – 2:30 p.m.	Mulched landscape beds, tree rings	Snapshot will be applied to broadleaf weeds to protect plantings.
Manor Oaks Local Park	3/31-4/11	6 a.m. – 2:30 p.m.	Mulched landscape beds, tree rings	Snapshot will be applied to broadleaf weeds to protect plantings.
South Germantown Recreational Park	4/1	7 a.m. – 3 p.m.	Pond	Seclear or Captain XTR will be applied to algae to restore habitat and protect ecosystem.
South Germantown Recreational Park	4/1	7 a.m. – 3 p.m.	Pond shoreline	AquaNeat or Diquat Herbicide or Komeen or Flumigard will be applied to invasive weeds to restore habitat and protect ecosystem.
Germantown Town Center Urban Park	4/1-4/11	6:30 a.m. – 2:30 p.m.	Stone beds, paver seams	Prosecutor Pro will be applied to annual grass weeds to protect amenities and infrastructure.
Germantown Town Center Urban Park	4/1-4/11	6:30 a.m. – 2:30 p.m.	Landscape beds, stone beds	SureGuard will be applied to selective grass and broadleaf weeds to protect amenities and infrastructure.
Upper Paint Branch Stream Valley Park	4/7-5/10	7 a.m. – 5 p.m.	Reforestation site: East of Peach Orchard Rd., south of Spencerville Rd.	Garlon 3A will be applied to invasive weeds to restore habitat and protect ecosystem.

On-site Signage Procedures:

• White prenotification signs are placed in advance of an application to playing fields, managed turf and treatments within 25 feet of a stream or creek. The signs list the planned application date, product, and the reason for the application.
• Yellow signs are installed at the site at the time of application and remain in place at least 48 hours following the pesticide application. For more information, call the phone number listed on the back of the sign.