Cal-IPC works to stop the spread of invasive plants across California...

• Ventura Beach Pier at sunset with waves in foreground. Text overlay Ventura, Nov. 12-15, 2025 Cal-IPC Symposium 2025 Cal-IPC Symposium, Nov. 12-15
• woman scientist with binoculars looks out over a marsh with Spartina plants Invasive Spartina Project
• A man in a long sleeved green shirt and blue cap kneels over a plot with pink flags to look closely at small flowering plants while two people standing look down Protecting Central Coast Habitat

• Symposium Registration is now open!

  Ventura Beach Pier at Sunset with rocks in foreground and a lone surfer in the distance
  Join us in Ventura or Online, Nov. 12-15 – we’re going hybrid!

• Cal-IPC has a new Strategic Plan

  Two smiling women with dark hair in bright red jackets and dark pants site on a pile of dry French broom plants in the bed of a beige truck.
  The Cal-IPC Board has approved our 2025-2030 Strategic Plan, outlining a bold vision for our organization’s future.

• Preparing for Wildland Fire: A Step-by-Step Guide

  Three firefighters in protective gear and helmets watch a prescribed fire
  This guide describes steps that can be taken to avoid, minimize, or mitigate the introduction and spread of invasive species before and during wildland fire.

• Report: Protecting rare plants from invasive plants

  small purple flowers of Camatta Canyon amole against fingers
  This report analyzes the risk of impacts from invasive plants to more than seven hundred populations of fifty federally listed plant species in the central coast of California

• WeedCUT decision support tool

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  Find guidance for a range of non-chemical weed control techniques, with the ability to filter by weed and site characteristics.

• Best Management Practices for Non-Chemical Weed Control

  Gloved hands hold a small weed and root system
  Comprehensive descriptions of 21 commonly used non-chemical weed control techniques and of biological control agents.

• Stewarding California’s Biodiversity: EDRR for Invasive Plants

  Two women with backpacks on their back bend over to pull weeds on a steep hilside
  This white paper provides background, a description of existing efforts, and recommendations for strengthening the state’s Early Detection Rapid Response capacity.

• Land Manager’s Guide to Developing an Invasive Plant Management Plan

  A helicopter flies low over a field of purple thistles
  This comprehensive guide is designed to be applicable at any scale and to help you create a land management plan that is strategic, integrative, and adaptive to changing conditions.

• Invasive-free landscaping

  Our Invasive Plant Checklist for California Landscaping compiles information from the Cal-IPC Inventory, PlantRight, and the CDFA Noxious Weed List to help landscape professionals avoid using invasive plants.