Midpen volunteer hand pulls invasive nonnative French Broom at Bear Creek Redwoods Preserve / photo by Alisha Laborico

Integrated Pest Management

Midpen volunteer hand pulls invasive nonnative French Broom at Bear Creek Redwoods Preserve (Alisha Laborico)

Integrated Pest Management is a method for efficiently managing plant and animal pests while protecting human health and the environment. Midpen adopted an IPM Guidance Manual to direct its management of harmful invasive plants and animals on preserves, as well as rodents and insects in Midpen-owned buildings.

Midpen biologists develop specific multi-year IPM plans based on the biology of the pest, ecological conditions at the treatment site and any potential secondary impacts such as soil erosion. Nonchemical techniques to control pests, like prevention, pulling, cutting, digging, mowing and/or setting traps, are considered before chemical methods.

In 2018, the California Department of Pesticide Regulation recognized Midpen's leadership in the Integrated Pest Management field with an IPM Achievement Award.

Natural Resources Protection and Restoration
Natural Resources

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Invasive Species Control

An invasive species is a plant or animal, often not originating from the local area, that has competitive advantages that allow its population to expand rapidly, reducing biodiversity in ways that often cause ecological and/or economic harm.

Midpen follows a strategic plan when dealing with invasive species and Midpen biologists prioritize treatment using the best science. Of particular concern are invasive plants that threaten rare native species or sensitive natural communities. Applying adaptive management practices, Midpen staff update work plans on an annual basis based on prior treatment results, new environmental conditions and any new invasive species sightings made by Midpen staff, volunteers or contractors, as well as community scientists like you using observation apps like iNaturalist.

    Join a Sudden Oak Death Blitz

    Would you like to learn about forest ecology and spend a few hours in an oak woodland? The Sudden Oak Death SOD Blitz Survey Project provides an opportunity for people of all ages to join a long-running community science program. Once you register and complete a short online training, you can help map the distribution of SOD in California to identify areas where native oaks should be treated to prevent SOD infection and death. Community blitzes are held throughout the greater Bay Area in April and May.