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Some questions for the Rapid Assessment Team

Some questions for the Rapid Assessment Team. Is the plant identified correctly? What is its historic, current, and predicted distribution at different scales? History and vectors; where did it come from and how did it get here? What is its expected potential for dispersion to other sites?

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Some questions for the Rapid Assessment Team

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  1. Some questions for the Rapid Assessment Team • Is the plant identified correctly? • What is its historic, current, and predicted distribution at different scales? • History and vectors; where did it come from and how did it get here? • What is its expected potential for dispersion to other sites? • What elements of biodiversity might be affected by its spread and establishment?

  2. More questions • Can it be controlled effectively? • What will it cost to control? • Who will be responsible for its control at this site? at new incursions? • Are there problems created by control? • What happens if we don’t take action now?

  3. Remember: Site visits can be fun!

  4. Recommendations • Attempt to determine the history of the incursion Important so the introduction is not repeated

  5. Probable source: wool waste from the Barre Woolen Mill in the 1970s

  6. Recommendations • Attempt to determine the history of the incursion • Check surrounding land for additional incursions Especially lands managed by same farmer

  7. Recommendations • Attempt to determine the history of the incursion • Check surrounding land for additional incursions • Check status of other New England occurrences

  8. OH, $&*%!

  9. More field work here

  10. Recommendations • Attempt to determine the history of the incursion • Check surrounding land for additional incursions • Check status of other New England occurrences • Control, aimed at removal

  11. CONTROL GUIDELINES • Mowing • Pre-determined time • Pay landowner for labor • Avoids herbicides • Relatively inexpensive • Likely to quickly lower numbers • Prevents spread of wind-dispersed fruits

  12. Recommendations • Attempt to determine the history of the incursion • Check surrounding land for additional incursions • Check status of other New England occurrences • Control, aimed at removal • Landowner education; outreach

  13. Recent reports • 1 misidentification – Sonchus arvernsis • 1 correct report – Boston Harbor Islands

  14. Seneciojacobaea in New England • 1903 Portland, Maine • 1910 Danvers, Massachusetts • 1938 Brookfield, Massachusetts • 1968 Newbury, Massachusetts • 2000 Bar Harbor, Maine • 2002 Barre, Massachusetts • 2003 Boston, Massachusetts

  15. Still to do… • Additional field work • Gather ecological data • Finish & implement action plan • Predictive modeling • Continue to support landowner’s goals • Distribute “Wanted” posters • Eradicate Stinking Willie

  16. In conclusion • Early Detection and Rapid Assessment can be very effective tools • Lots of trained observers out in the field are needed • Have an quick and easy reporting mechanism for new or unknown plants • Rapid Assessment must involve a wide range of knowledgeable people and local stakeholders • The public must be engaged in the process • Follow-up monitoring is mandatory

  17. NO NEW INVASIONS

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