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Forest Health Conditions

2006 Aerial Overview Survey Summary Table

(For maps go to the 2006 Maps page)

All Forest Health Factors Detected Through Aerial Surveys by Region 
District specific data is available in an Excel spreadsheet

Surveys conducted from July to September, 2006

Disturbance Type
(Pest Code)
Hectares affected (all severity classes)
 

CFR

SIFR

NIFR

PROV

Bark Beetles         
IBM=Mountain Pine Beetle 216,943 5,127,425 3,899,040 9,243,408
IBS=Spruce Beetle 1,170 82,323 167 83,660
IBB=Western Balsam Bark Beetle 11,599 283,527 899,041 1,194,167
IBD=Douglas-fir Beetle 1,406 56,112 3,191 60,709
IBF=Fir engraver beetle 0 0 0 0
IBI=Engraver beetle 0 0 0 0
IBW=Western Pine Beetle 0 1 0 1
IBL=Lodgepole Pine Beetle 0 0 0 0
IBT=Red Turpentine Beetle 0 0 0 0
Total All BB= 231,118 5,549,386 4,801,440 10,581,944
 

CFR

SIFR

NIFR

PROV

Defoliators        
ID=Defoliators 72 419 0 491
ID6=Aspen Leaf Miner 0 12,878 0 12,878
IDH=Western Blackheaded Budworm 0 1,306 0 1,306
IDB=2-Year Budworm 33 63,490 4,164 67,686
IDE=Spruce Budworm 0 0 0 0
IDL=Western Hemlock Looper 184 1,001 553 1,738
IDS=Conifer Sawflies 0 0 0 0
IDK=Northern Tent Caterpillar 0 0 0 0
IDF=Forest Tent Caterpillar 0 241 0 241
IDW=Western Spruce Budworm 20,807 755,916 0 776,723
IDN=Birch Leaf Miner 0 4,635 0 4,635
IDU=Satin Moth 292 6 0 298
IAS=Green Spruce Aphid 195 0 0 195
IDI=Pine needle sheathminer 0 0 0 0
IDT=Douglas-fir Tussock Moth 0 0 0 0
IDX=Large Aspen Tortrix 0 0 123,312 123,312
IDP=Larch Sawfly 0 0 0 0
IDR=Alder Sawfly 180 0 0 180
IDZ=False Hemlock Looper 0 0 0 0
Total Defoliators= 21,763 839,891 128,142 989,797
 

CFR

SIFR

NIFR

PROV

Other        
NB=Fire 3,185 52,805 104,811 160,801
NCA=Aspen Decline 63 0 0 63
NCB=Birch Decline 0 0 0 0
NCY=Yellow Cedar Decline 4,137 0 0 4,137
NW=Windthrow 0 1,587 2,759 4,346
ND=Drought 1,052 24 2,033 3,110
NF=Flooding 199 161 1,297 1,657
NGK=Shoot/Bud Frost Kill 0 0 0 0
NS=Slide 103 7 56 166
NR=Redbelt 0 0 309 309
Total Abiotics= 8,740 54,584 111,282 174,606
 

CFR

SIFR

NIFR

PROV

Diseases        
DFL=Pine Needle Cast 0 0 0 0
DRA=Armillaria Root Disease 0 104 0 104
DMP=Lodgepole Pine Dwarf Mistletoe 0 0 0 0
DSB=White Pine Blister Rust 0 0 0 0
DSC=Comandra Blister Rust 0 0 0 0
DFH=Larch Needle Blight 0 68,228 0 68,228
DRB=Blackstain root disease 0 0 0 0
DFM=Larch Needle Cast 0 0 0 0
DFS=Redband (Dothistroma) Needle Blight 0 0 2,891 2,891
DLV=Venturia spp 0 0 0 0
Total Diseases= 193 68,332 3,739 72,264
 

CFR

SIFR

NIFR

PROV

Animals        
AB=Bear 0 62 0 62
AC=Cattle 0 0 7 7
AP=Porcupine 0 0 0 0
AD=Deer 0 0 0 0
Total Animals= 0 62 7 69
 

CFR

SIFR

NIFR

PROV

Total Other= 8,933 122,978 115,028 246,939
 

CFR

SIFR

NIFR

PROV

Total = 261,815 6,758,211 5,044,610 11,818,680

NIFR = Northern Interior Forest Region; SIFR= Southern Interior Forest Region; CFR= Coastal Forest Region

(1) - Diseases other than foliage diseases are very difficult to accurately map using aerial overview style surveys.  The totals presented here are not an accurate depiction of dwarf mistletoe and root disease incidence in the province.  More accurate data is obtained using ground surveys.

As in previous years, nearly all of the province was surveyed with the exceptions of portions of the Mid-Coast and Cassiar areas due to weather and resource constraints.   

(2) Fire data was collected by the overview survey and augmented, where available, with data provided by MOFR Protection Branch.

 

Last updated on November 2, 2005
The contact for this web page is: tim.ebata@gov.bc.ca

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