1. Attack of the spruce beetle Jalene LaMontagne

2. Mark Andruskiw

3. KL along highway 2004 (negative end) KL near E13 2004

4. SU along arc 2004

5. KLSU # transect groups77112 (every 60 m, 3-100m2 transects) Total area sampled23100 m233600m2 # trees in transects200225097582 # trees >5cm dbh16494288 # dead trees2002106 (6.4%)280 (6.5%) 2004207 (12.6%)645 (15%) # BB attack trees2004112 (7.8%)393 (10.8%) # WS BB attack2004319 1038 or dead(19.3%)(24.2%) * Smallest attacked tree 2004 7.7 cm dbh (Rod Garbutt)

6. Proportion of white spruce >5cm dbh attacked or killed by spruce beetle 2002 ( based on #trees per 10m 2 ) 0 - 0.048 0.049 - 0.1 0.11 - 0.2 0.21 - 0.25 0.26 - 0.3 0.31 - 0.35 0.36 - 0.4 0.41 - 0.5 0.51 - 0.77

7. Proportion of white spruce >5cm dbh attacked or killed by spruce beetle 2004 (based on #trees per 10m 2 ) note: same scale as 2002 0 - 0.048 0.049 - 0.1 0.11 - 0.2 0.21 - 0.25 0.26 - 0.3 0.31 - 0.35 0.36 - 0.4 0.41 - 0.5 0.51 - 0.77

8. Future conditions Switch in bark beetle life cycle from 2 years to 1 year - potential for double cohorts Need a long period of extreme cold in winter to decrease spruce beetle population