CNPS Healthy Nurseries and Habitats Committee

"Every Step Counts" pamphlet

HIGHLIGHTS - recent references - 10/16/25

  • Start clean and stay clean when visiting native plant habitats
    • Cleanliness tips for hikers and trail users, 5/16/23 - Detailed info. - pdf link
    • Pocket Guide "Every Step Counts", current version 6/2/25 - (print on both sides and fold vertically) - pdf link
  • "Technical guide for a leachate baiting method to test container nursery stock for soilborne Phytophthora", June 2025 - Phytosphere Research, Swiecki, Ted and Bernhardt, Elizabeth - What to test and how. - pdf link
  • "Sampling to Detect Soilborne Phytophthora Infestations in California Habitat Restoration Plantings: A Technical Guide", March 2025 - PSW-GTR-279, Swiecki, Ted et al. - Background information and guidance for land managers and professionals. Some of the best published field photos to date. - pdf link
  • 2023/24 Annual Committee Report, 5/16/24 - pdf link

PHYTOPHTHORA WEBSITES comprehensive information for resource and nursery management

  • AIR Program - Website to help nurseries understand the problem, meet the challenge... and get certified! - "Accreditation to Improve Restoration (AIR) is a program to implement the systematic use of clean production practices designed to exclude Phytophthora plant pathogens from nurseries. Nurseries that consistently follow the Nursery Phytophthora Best Management Practices (NPBMPs) used by the AIR program have been able to consistently produce nursery stock free of detectable Phytophthora infection."

  • Phytosphere Research - the lastest applied science - services, publications, and projects