Pesticide Use

The City strives to be a good steward of its natural environment by continually exploring innovative, environmentally sensitive and cost-effective strategies for pest management. 

The objective of Rockville’s pest management policy is to manage pests that may cause harm or threaten the health or functioning capability of an area while minimizing risk to human health and the environment. To accomplish this the City uses the principles of Integrated Pest Management (IPM) which combines multiple strategies and techniques for pest control such as monitoring, improving cultural practices, conserving and introducing beneficial biological organisms, mechanical methods, and the use of organic and inorganic chemicals.

Pesticide Signs 2022

On-Site Signage

On the day of application, staff will post on site signage per the Maryland Department of Agriculture (MDA) Pesticide Section. This includes posting signs at major entrances and in the general vicinity of the application for 48 hours after the application. 

The below table includes a schedule of upcoming pesticide applications by staff/contractors that are certified and registered with the Maryland Department of Agriculture.* The list is updated to provide at lease one week notice for applications. 

Scheduled Pesticide Application

LocationPlanned Application Date RangeArea to be treatedApplication Details
Courthouse Square Park210/03/2022-10/07/2022Mulched Planting BedsSpot treat weeds in planting beds throughout park (Prosecutor Pro)
Mattie J.T. Stepanek Park10/03/2022-10/07/2022
Mulched Planting BedsSpot treat weeds in planting beds throughout park (Prosecutor Pro)
King Farm Park10/03/2022-10/07/2022
Mulched Planting BedsSpot treat weeds in planting beds throughout park (Prosecutor Pro)
Fallsgrove Village Green10/03/2022-10/07/2022
Mulched Planting BedsSpot treat weeds in planting beds throughout park (Prosecutor Pro)
Elwood Smith Park10/03/2022-10/07/2022
Mulched Planting BedsSpot treat weeds in planting beds throughout park (Prosecutor Pro)
College Gardens Park10/03/2022-10/07/2022
Mulched Planting BedsSpot treat weeds in planting beds throughout park (Prosecutor Pro)
Rockville Swim Center10/03/2022-10/07/2022
Mulched Planting BedsSpot treat weeds in planting beds throughout park (Prosecutor Pro)
Rockville Senior Center10/03/2022-10/07/2022
Mulched Planting BedsSpot treat weeds in planting beds throughout park (Prosecutor Pro)
Chestnut Lodge Park10/03/2022-10/07/2022
Mulched Planting BedsSpot treat weeds in planting beds throughout park (Prosecutor Pro)
Phillis Kavanagh Park10/03/2022-10/07/2022
Mulched Planting BedsSpot treat weeds in planting beds throughout park (Prosecutor Pro)
Croydon Creek Park10/03/2022-10/07/2022
Mulched Planting BedsSpot treat weeds in planting beds throughout park (Prosecutor Pro)
Lincoln Park Community Center10/03/2022-10/07/2022
Mulched Planting BedsSpot treat weeds in planting beds throughout park (Prosecutor Pro)
Twinbrook Recreation Center10/03/2022-10/07/2022
Mulched Planting BedsSpot treat weeds in planting beds throughout park (Prosecutor Pro)
Beall Dawson Park10/03/2022-10/07/2022
Curbs, sidewalks and tree pitsSpot treat weeds in & around cracks/edges of these areas (Roundup Pro)
Watkins Pond (SWM)9/12/2022-9/16/2022
Area around stormwater pond.
Spot treatment (Pathfinder and Garlon 3A) for non-native invasive Ailanthus altissima. 
Upper Watts Branch9/12/2022-9/16/2022
Stream restoration areas. Spot treatment (Garlon 3A, Rodeo, and Roundup Custom) for non-native invasive plants. 


*Rockville staff makes 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.