1. Wildlife/Livestock Damage

2. Mechanical Damage

3. Climate Damage (Frost)

4. Climate Damage (Drought)

5. Climate Damage (wind)

6. Climate damage (ice and snow)

7. Climate Damage (fire)

8. Leaf Spot

9. Mistletoe Damage

10. Lightening Damage

11. Sunscald

12. Spider mite
. Mites that generally live on the under sides of leaves of plants
They can cause damage by puncturing the plant cells to feed

13. Wood Borer

14. Needle Cast

15. Spruce budworm

16. Cicada Damage

17. Damping Off

18. Douglas fir tussock moth Damage

19. Gypsy Moth Damage

20. Rust

21. Scale

22. Slime Flux

23. Tent Caterpillar

24. Heart rot

25. Chemical Damage

26. Sawfly

27. Canker

28. Western Pine Beetle

29. Southern Pine Beetle

30. Air Pollution Damage

31. Black Turpentine Beetle

32. Landscape Equipment Damage

33. Girdling Roots

34. Aphids

35. Nematode