National Forest Herbicide Monitoring Project

Back to Environmental Monitoring Branch


Manzanita Berry

When trees from national forests are removed (due to fires or logging), the U.S. Forest Service prepares the site and replants conifers. As part of this process, herbicides are used to control plants that compete with the conifers. In recent years, California tribal people who live and gather food, medicinal, ceremonial and basketry plant materials in or near these forests have voiced concerns about herbicide exposure. In response, the U.S. Forest Service funded studies by the California Department of Pesticide Regulation (DPR) to assess the potential exposure of plant gatherers and users to forestry herbicides.

The following are documents and reports of this U.S. Forest Service-funded project:



For content questions, contact:
Kean S. Goh
Phone: (916) 324-4072
E-mail: Kean.Goh@cdpr.ca.gov