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Wind dispersed

Senecio jacobaea, a wind-dispersed harmful plant native to Europe, has invaded New England since 1903. Known for aggressive growth, it forms basal rosettes and harms livestock. Early detection and reporting are crucial for effective control. Rapid assessment teams and various stakeholders play a key role in managing this invasive plant.

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Wind dispersed

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  1. Wind dispersed

  2. Basal rosette-forming biennial

  3. Harmful to livestock; avoided

  4. Aggressive!!!

  5. Native to Europe • New England (ME, MA) • NY, NJ, PA, IL, MI, MT, ID • Canadian Maritime Provinces • Pacific States & adjacent Canada • Australia, New Zealand, Japan

  6. Prince Edward Island, Canada

  7. Seneciojacobaea in New England • 1903 Portland, Maine

  8. Seneciojacobaea in New England • 1903 Portland, Maine • 1910 Danvers, Massachusetts

  9. Seneciojacobaea in New England • 1903 Portland, Maine • 1910 Danvers, Massachusetts • 1938 Brookfield, Massachusetts

  10. Seneciojacobaea in New England • 1903 Portland, Maine • 1910 Danvers, Massachusetts • 1938 Brookfield, Massachusetts • 1968 Newbury, Massachusetts

  11. Seneciojacobaea in New England • 1903 Portland, Maine • 1910 Danvers, Massachusetts • 1938 Brookfield, Massachusetts • 1968 Newbury, Massachusetts • 2000 Bar Harbor, Maine

  12. Seneciojacobaea in New England • 1903 Portland, Maine • 1910 Danvers, Massachusetts • 1938 Brookfield, Massachusetts • 1968 Newbury, Massachusetts • 2000 Bar Harbor, Maine • 2002 Barre, Massachusetts

  13. October, 2002

  14. July, 2003

  15. “Early” Detection; report

  16. Specimen Collected Verification

  17. The incursion

  18. Rapid Assessment Team • Landowner • Botanists • Weed scientists • Control experts • State or federal regulatory officials • Other stakeholders • IPANE staff

  19. IPANE Rapid Responders Database • Field Botanists • Floristic Botanists • Control & Management Experts • Regulatory Officials

  20. IPANE Rapid Responders Database • Geography – states and regional • Responder categories • Ecological systems – terrestrial and aquatic

  21. Rapid Assessment site visit

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