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Exploring Forest Health: Defoliator Outbreaks and Management Strategies

Discover the impact of defoliator outbreaks on forest health and how to determine patterns for scientific control. Explore the relationships between forest health and fire, and learn about the real tree killers affecting forests. Uncover the combined climate-human influence on Southwest forests and why it's important to care for healthy forests. Delve into specific issues like the spruce budworm outbreak, bark beetles, and dwarf mistletoe infestations, and explore management strategies for forest sustainability. Learn about past forest health challenges and examine scientific control measures through treated, control, and untreated sites. Gain insights into Southwest forest health key points and the significance of the Healthy Forest Act.

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Exploring Forest Health: Defoliator Outbreaks and Management Strategies

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  1. Today’s topioc: Forest Health Issues • Forest Health • Defoliator Outbreaks • How to determine • Scientific “control” • Timing, extent, patterns • Relationship with fire • The real tree killers • Combined climate-human influence on SW forests http://cpluhna.nau.edu/index.htm

  2. Forest Health • Do forests get “sick”? How? • Form • - • - • - • Function • - • -

  3. Why Care About Healthy Forests? • - • - • - • - • - • - • - • -

  4. Spruce Budworm • - • - • - • - • - • -

  5. Current Outbreak • Lots of dead trees • Still have branches • No fire char

  6. Clumps of trees often succumb together

  7. Inside the woods can be quite airy

  8. One management strategy is ____________ • -

  9. Geography • - • - • - • -

  10. - • -

  11. Deep Time Past • - • - • -------? • -------?

  12. Scientific “Control” • “Treated”: - • “Control”: - • “Untreated”: - • - • - • -

  13. - • - • - • -

  14. 1 site • - • -

  15. - • - • -

  16. BarkBeetles

  17. Any fire effects?

  18. DwarfMistletoe • - • -

  19. Huge recruitment of ________________ in NM • - • -

  20. Late 1800s 1992

  21. A Grand Picture • - • - • - • - • - • - • -

  22. - • - • - • -

  23. SW Forest Health Key Points • ------------------? • - • - • - • - • - • - • -

  24. Healthy Forest Act (2003) • - • - • - • -

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