1. 4-H Forestry Judging
Tree Diseases

2. artist conk

3. annosum root rot
Similar to artist conk
At base of conifer trees

4. beech bark scale

5. black knot

6. brown spot needle blight

7. cedar apple rust
On cedar limbs and apple leaves

8. dogwood anthracnose
Only on dogwood leaves

9. Dutch elm disease
Fan shaped galleries

10. dwarf mistletoe

11. fusiform rust

12. hypoxylyn canker
Gray patches on bark

13. lichen

14. nectria canker
Bullseye shape swelling

15. needle cast

16. oak wilt
Brown transparent
oak leaves

17. red heart of pine

18. white pine blister rust

19. chaga mushroom
Like a large black knot