1. Laminated Root Rot in the Southern Interior

2. My Talk Biology Disease Recognition Detection Treatment & Management

3. Phellinus weirii (Douglas-fir type) or Inonotus sulphurascens

4. How it Gets its Common Name

5. What is it? Fungus that grows on the roots of conifers Spreads by root to root contact Survives for long periods in stumps Losses in BC estimated at over 1million m3/yr. (40,000 houses)

6. Hosts Highly SusceptibleSusceptibleTolerantResistantImmune Douglas-fir true fir western hemlock spruce larch pinescedarshardwoods

7. Age Effects Young trees die  1-2 years Older trees  15-20 years Old Growth  more like a butt rot

8. Distribution Follows natural distribution of Douglas-fir IDF/ICH (higher hazard in wetter subzones) Exceptions Chilcotin Plateau Quenel District is northern limit

9. Life Strategy Get there first (first come first serve) Protect your turf  gated (zone lined) community Wait for the next unsuspecting victim (stealth pathogen)

10. My Talk Biology Disease Recognition Detection Treatment & Management

11. Symptoms (I’m sick!)

12. Signs – Ectotrophic Mycelium (first come first serve)

13. Setal Hyphae

14. Brown Crusty Layer (pseudosclerotial plates)

15. Stain

16. Decay (& Zone Lined or Gated Community)

17. Survival (Stealth Mode)

18. Fruiting Body

19. Outline Biology Disease Recognition Detection Treatment & Management

20. Root Rot Centers

21. Look Up Way Up

22. Survey Methods Helicopter or Ortho Photos Fairly easy to detect with a helicopter with good imagery it is often possible to roughly map larger centers from photos Walkthroughs Detailed Pre-harvest or stump-top Transect surveys Sketch mapping

23. Large DRL Center detected from the air and mapped in Google Earth

25. Laminated Root Rot (Likely)

26. Douglas-fir and Birch Leading

27. Stratification - Blast from Past

28. Confounding Factors Often plays 2 nd cousin Associated with & Masked by Douglas-fir Beetle, Armillaria Root Rot, Deciduous patches left out of blocks (crappy cedar)

29. My Talk Biology Disease Recognition Detection Treatment & Management

30. Treatment Stumping Alternate Species

31. Limiting Factors Fine textured soils Wet sites Steep slopes Large stumps Shallow soils Riparian areas

33. Alternate Species Highly SusceptibleSusceptibleTolerantResistantImmune Douglas-fir true fir western hemlock spruce larch pinescedarshardwoods

34. Any Questions?