Transcript ForestHealthMPB2003

Kamloops Forest District
Bark Beetle Update,
December 2002
Dendroctonus ponderosae
Photo Source: L. Maclauchlan, Kamloops Forest Region
COMMERCIAL TREE SPECIES
lodepole pine
Douglas-fir
Bark beetles are very small, cylindrical insects
they must work together to “mass attack” trees
Beetles fly in late summer
Locate susceptible host
(large, old pine) to attack
Pitch response to beetle attack
Slide Source: L. Maclauchlan, Kamloops Forest Region
Frass and boring dust at the base of an
attacked tree
Slide Source: N. Jeans-Williams
PROTECTED UNDER THE
BARK
• The young beetles
develop under the
relative shelter of the
bark over the next year
Larvae in galleries
• The new brood emerge
in July/August following
year and attack
adjacent trees
Slide Source: N. Jeans-Williams
Galleries
under
the bark
LARVA
ADULT
Slide Source: N. Jeans-Williams
pupa
teneral adult
larva
Mountain pine beetle is well set to overwinter
Slide Source: L. Maclauchlan, Kamloops Forest Region
How does a mountain pine beetle
outbreak begin?
weather
beetles
host
Synchronous 1 year life cycle
Slide Source: L. Maclauchlan, Kamloops Forest Region
The Provincial Perspective 2002 Overview
mountain pine beetle
•Kamloops Region: 35,903 ha affected
•Cariboo, Prince George and Prince
Rupert Regions: 1.7 million ha affected
Provincial Total:
1.9 million ha affected
Data Source: MoF Forest Practices Branch
TWEEDSMUIR PARK Summer 1999
Provincial
MPB
affected
area
2002
Map Source: MoF, Forest Practices Branch
Cumulative MPB affected area
1959-Present
Map Source: Pacific Forestry Centre, NRC
The mountain pine beetle
outbreak in Central BC 2001
NEWS RELEASE
Date: November 28, 2001
Houston
Prince George
CLMA/NFPA Mountain Pine
Beetle Emergency Task
Force: Mountain Pine Beetle
Epidemic Now 98 per cent
of Provincial Allowable Annual
Quesnel
Cut
100 Mile House
Source: CLMA/NFPA
2002 mapped
mountain pine beetle,
Kamloops Region
Map Source: Kamloops Forest Region
Thousands of hectares
affected
27 year history of MPB in the
Kamloops Region
60
50
40
30
20
10
0
Year
2002 area increased by ~ 6,000 ha from
2001 to almost 36,000 ha
Data Source: Kamloops Forest Region
Hectares affected by MPB & estimated
expansion rates (Green:Red ratios)
35
29.75
Thousands of hectares
30
29.32
25
20
19.401
21.218
2:1
4:1
15
10
8:1
20:1
5
0
1998
1999
2000
Year
2001
Slide Source: L. Maclauchlan, Kamloops Forest Region
2001 green to red
ratio for the
mountain pine beetle
~ 4 to 1
Slide Source: L. Maclauchlan, Kamloops Forest Region
Kamloops Forest Region
Aerial Overview Survey,
2002
Damaging Agent
Ha affected(in Region)
Mountain pine beetle
35,903 ha
Western balsam bark beetle
24,455 ha
Douglas-fir beetle
2,697 ha
Spruce beetle
1,027 ha
Data Source: Kamloops Forest Region
MPB Hazard Rating
•Identifies stands where high losses can be
expected should a beetle outbreak arise
•The rating considers stand age, host basal area,
stand density and elevation
•Hazard Rating is sometimes referred to a
susceptibility.
MPB Hazard
Rating
Clearwater
#
Y
Vavenby
#
Y
Little Fort
#
Y
Barriere
#
Y
Chase
#
Y
Cache Creek
#
Y
Ashcroft
Kam loops
#
Y
#
Y
Logan Lake
#
Y
eek
Kamloops
#
Y
Logan Lake
#
Y
Kam lo ops
#
Y
MPB Risk Rating
•Estimates the probability of an outbreak
•Considers the proximity to the nearest active
outbreak
•Stands at highest risk are immediately adjacent
and within 1 km of an active outbreak
MPB Management Options
1 Sanitation Harvest
(small or large patch)
• The most destructive
beetle
of mature
2 Baitpest
and Harvest
Douglas-fir
3 Single tree removal
• Occurs
the
4 Fall &throughout
Burn
range of Douglas-fir in
5 MSMA
North
America
6 Prevention
Slide Source: N. Jeans-Williams
ACTIONS and CONFLICTS?
Treatment Options and Potential Conflicts
• Harvesting and logging operations with respect to
visual landscape, noise (shift workers), and traffic
• clearcutting
• horse logging
• heavy equipment
• trucking
• fall & burn (smoke sensitivity)
• recreation (ski, snowmobile, golf, etc.)
• Other resources - wildlife, water, etc.
The current beetle attack in
the Kamloops District…
with a focus on …...the
District of Logan Lake, and
the City of Kamloops
Area affected by MPB - 2002
Data Source: Combined Region Aerial Overview Survey
2002 and District GPS survey to November 29, 2002
 Total affected area = 18,572 ha
 6,000+ GPS tags and polygons
Data Source: Cascadia Nat. Res. Cons.
Kamloops Forest
District
MPB 2002
Y
#
LITTLE \FORT
# BARRIERE
Y
YLOUIS\CREE K
#
CHASE
Y
#
CACHE\CREE K
Y
#
ASHCROFT
Y
#
Y
#
SAVONA
LOGAN\LAKE
Y
#
LoganLake
KAMLOOPS
Y
#
CACHE\CREE K
Y
#
SAVONA
Y
#
ASHCROFT
Y
#
Tu n kwa Park
LOGAN\LAKE
#Logan Lake
Y
Tunkwa Park
YLogan Lake
#
Y
#
Logan Lake
Y
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Logan Lake
Y
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Logan Lake
KAMLOOPS
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ACTIONS TO DATE
•Regional Aerial Overview Survey (fixed wing)
mapped large to small sized Red Attack areas August 2002
•District Aerial Detailed Survey (rotary wing)
mapped very small Red Attack areas - Nov 2002
•Weyerhaeuser Aerial & Preliminary Ground
Surveys on high priority areas
•District MSMA project at Tunkwa Park
•District issued 6 contracts (acc.) $100,000 for
ground surveys from Lac Le Jeune to LL Dam to
Barnes Lake to Savona to Greenstone
PROPOSED ACTIONS
•Meet with local governments, user groups,
resource companies, private landowners, and etc.
•Develop Joint Action Plan for communities and
adjacent forests
•provide extension services and professional
expertise
•Presentation at LRUP Meetings in January 2003
•Budget and Implement Action Plan; Monitor,
Audit, and modify plan
LODGEPOLE PINE DWARF
MISTLETOE Archeuthobium americanum
Causes stem and
branch swellings
Witches’ Brooms