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Diagnosing Plant Disorders

Diagnosing Plant Disorders. Introduction to Plant Science J.G. Mexal. Diagnosing P lant Disorders. Verticillium wilt. Dark discoloration. What’s Killing Your Trees Fire blight. Apple. Pear. Cotoneaster. E. Shannon. What’s Killing Your Trees Crown gall on pecan. E. Shannon.

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Diagnosing Plant Disorders

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  1. Diagnosing Plant Disorders Introduction to Plant Science J.G. Mexal

  2. Diagnosing Plant Disorders Verticillium wilt Dark discoloration

  3. What’s Killing Your TreesFire blight Apple Pear Cotoneaster E. Shannon

  4. What’s Killing Your TreesCrown gall on pecan E. Shannon

  5. Gall on Ponderosa Pine

  6. What’s Killing Your TreesSlime flux E. Shannon J. Mexal

  7. Types of ‘Disease’ • Abiotic - Physcial Factors • Temperature • Moisture • Nutrients • Biotic - Biological • Insect • Disease (Fungi, Bacteria, Virus) • DPD- human

  8. What’s Killing Your TreesMistletoe (leafy & dwarf) J. Mexal

  9. What’s Killing Your TreesLichens ?

  10. Eriophyid mites on ash 0.01”

  11. What’s Killing Your TreesSpider Mites Adult Webbing Damage USFS

  12. What’s Killing Your TreesInsects Pine Tip-moth Shot-hole borer E. Shannon

  13. Pecan UpdateBlackmargined Aphid / B. Lewis Aphid Predator Egg Masses

  14. What’s Killing Your TreesPecan Twig Girdler

  15. What’s Killing Your TreesApple Flat Head Borer Larva Wood Borer Bob Cain

  16. What’s Killing Your TreesInsects

  17. Types of ‘Disease’ • Abiotic - Physcial Factors • Temperature • Moisture • Nutrients • Biotic - Biological • Insect • Disease (Fungi, Bacteria, Virus) • DPD- human

  18. What’s Killing Your TreesThe Biggest Killer of Trees--DPD It’s still alive, but for how long? J. Mexal

  19. What’s Killing Your TreesWhat are the critical parts of a tree? Bark Cambium Xylem

  20. Things to Know • Disease triangle • Types of Disease • Diseases in New Mexico

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