Integrated Pest Management

About Integrated Pest Management

Integrated Pest Management (IPM) is a decision-making process to determine pest levels and tolerance thresholds and combines biological, cultural, physical, and chemical tools to minimize health, environmental, and financial risks. The method uses extensive knowledge about pests, such as infestation thresholds, life histories, environmental requirements, and natural enemies to complement and facilitate biological and other natural control of pests. It coordinates the use of pest biology, environmental information, and available technology to prevent unacceptable levels of pest damage by the most economical means, while posing the least possible risk to people, property, resources, and the environment. 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.

Press Releases

City Parks Transitioned to Synthetic Free Lawn and Landscaping Maintenance (November 23, 2020) / Parques de la ciudad transición a césped libre sintético y mantenimiento de paisajismo (23 de Noviembre de 2020)

2019 Updates

In 2019 staff made substantial updates to the Integrated Pest Management (IPM) policy and procedures.  The updates were developed with the guidance of public input, staff collaboration, and an audit of best practices from other agencies. 

City of Rohnert Park Integrated Pest Management Policies and Procedures
Attachment A - Hazard Tier Review Process
Attachment B - Preliminary Reduced-Risk Pesticide List for City of Rohnert Park
Attachment C - Pesticide Exemption Form
Attachment D - Pesticide Hazard and Exposure Reduction Analysis
Attachment E - Monthly IPM Report Form

Pesticide Exemption Forms

March 2021 - Whack Out Weeds 

Anticipated Pesticide Application Calendar

Due to public desire to know where and what pesticides are being applied in and along our parks and miscellaneous landscaped areas that people are most likely to enter, the city has established a calendar connected to an eNotification system to provide this information.  As always, no pesticide applications take place within playground areas.

The Anticipated Pesticide Application Calendar is located here.

The calendar will notice where and when pesticides are applied 48 hours prior to the application.  An eNotification will be sent when the calendar notice of spraying is posted.

Sign up to receive notification of upcoming anticipated pesticide applications.


The City of Rohnert Park Integrated Pest Management Program utilizes the PHAER (Pesticide Hazard and Exposure Reduction) Zone System.

Notice shall be provided to those desiring to stay clear of the entry area of an application site.  The Parks division will provide visible notice by posting "caution" signs near the application areas which people are most likely to enter.