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Foothills Park

Parks Integrated Pest Management

City of Lake Oswego Oregon Official Website


In order to carefully and effectively manage noxious and invasive species of plants within the community's Parks system the Parks Maintenance Division continues to utilize best practices of Integrated Pest Management.


Integrated Pest Management (IPM) is an effective and environmentally sensitive approach to pest management that relies on a combination of common-sense practices. IPM programs use current, comprehensive information on the life cycles of pests and their interaction with the environment. This information, in combination with available pest control methods, is used to manage pest damage by the most economical means, and with the least possible hazard to people, property, and the environment. The Parks Maintenance Division utilizes this best practice to thoughtfully control and eradicate noxious/invasive plant species that would otherwise out-compete native varieties.


The Parks Maintenance Division is responsible for maintaining many Park sites throughout the City.

  • 627 acres of City of Lake Oswego Parks Property (Maintenance by Parks Staff and Contractors),
  • 190 sites (including some right of ways and water properties) approximately 60 acres of City Beautification sites(Maintenance by Parks Staff and Contractors)


IS IPM JUST ABOUT PESTICIDES? - No, IPM is not just about pesticide use, it is a strategy guide to manage public spaces utilizing a wide range of "tools" from mulching to application of pesticides. IPM is a “toolbox” and a living document. It provides a comprehensive list of effective methods to manage pests and to minimize the damage they have on public spaces. Pesticides are a very small part of the overall management toolbox. CLICK HERE to download the latest IPM Document.  

STAFF CERTIFICATION - All Park Maintenance Staff that use pesticides are required to be Licensed Certified Applicators. Any contractors that works for the department must also be Licensed Certified Applicators. To be certified each applicator must go through a comprehensive training program and receive continuing education through the Oregon Department of Agriculture.

UPDATING PRACTICES - Annually the Parks Maintenance Division reviews and updates the IPM document utilizing establish best management practices. The goal is to utilize minimal inputs to have maximum effectiveness. Each year staff strive to find better avenues that environmentally and economically manage pests and continue to use safer practices.

APPLICATION OF PESTICIDES - When application of pesticides occurs the Certified Applicators are trained to properly measure and mix the smallest but most effective amounts of pesticides for the task. Applications of pesticides are applied selectively utilizing spot treatment.

NATURAL CHARACTER PARK INVASIVE REMOVAL - Within the past three years Council provided the Parks Maintenance Division with funding to begin restoration of our Natural Character Park spaces which includes eradicating invasive species (Ivy, Clematis, Holly, and other species).


2016 Parks Integrated Pest Management Plan   ( CLICK HERE to view document)


4-1-13 - Parks and Open Space Herbicide Policies and Practices Council Report  ( CLICK HERE to view document)

2-5-13 - Invasive Species Removal Update Council Report ( CLICK HERE to view document)