Forest Health Conditions

2004 Aerial Overview Survey Summary

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, 2004

Disturbance Type (Pest Code)	Hectares affected (all severity classes)
	CFR	NIFR	SIFR	PROV
Bark Beetles
IBM=Mountain Pine Beetle	212,620	4,185,119	2,624,147	7,021,886
IBS=Spruce Beetle	2,152	76,685	25,974	104,810
IBB=Western Balsam Bark Beetle	55,711	290,691	1,671,193	2,017,595
IBD=Douglas-fir Beetle	2,691	31,376	59	34,126
IBF=Fir engraver beetle	0	1,358	0	1,358
IBW=Western Pine Beetle	0	0	351	351
IBL=Lodgepole Pine Beetle	0	0	0	0
IBT=Red Turpentine Beetle	0	0	0	0
Total All BB=	273,174	4,585,581	4,321,372	9,180,126
	CFR	NIFR	SIFR	PROV
Defoliators
ID=Defoliators	0	0	0	0
IDH=Western Blackheaded Budworm	90	139	0	229
IDB=2-Year Budworm	0	51,171	0	51,171
IDE=Spruce Budworm	0	0	29,648	29,648
IDL=Western Hemlock Looper	241	5,509	0	5,750
IDS=Conifer Sawflies	0	0	0	0
IDK=Northern Tent Caterpillar	0	0	872	872
IDF=Forest Tent Caterpillar	0	9	0	9
IDW=Western Spruce Budworm	8,947	614,787	0	623,735
IDN=Birch Leaf Miner	0	672	0	672
IDU=Satin Moth	722	2,962	0	3,683
IAS=Green Spruce Aphid	0	0	0	0
IDI=Pine needle sheathminer	0	0	0	0
IDT=Douglas-fir Tussock Moth	0	0	0	0
IDX=Large Aspen Tortrix	0	0	429,526	429,526
IDP=Larch Sawfly	0	0	0	0
IDZ=False Hemlock Looper	0	0	0	0
Total Defoliators=	10,000	675,249	460,046	1,145,295
	CFR	NIFR	SIFR	PROV
Other
NB=Fire	10,654	44,562	154,792	210,008
NW=Windthrow	88	5,220	409	5,717
ND=Drought	0	11,326	0	11,326
NF=Flooding	13	490	4,185	4,688
NGK=Shoot/Bud Frost Kill	0	1	0	1
NS=Slide	0	0	0	0
NR=Redbelt	0	8,506	1,420	9,926
Total Abiotics=	10,756	70,105	160,805	241,666
	CFR	NIFR	SIFR	PROV
Diseases
DFL=Pine Needle Cast	0	152	0	152
DRA=Armillaria Root Disease	0	0	0	0
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 Cast	0	0	0	0
DRB=Blackstain root disease	0	0	0	0
DFS=Redband Needle Blight	0	0	0	0
DFM=Larch Needle Blight	0	0	0	0
DFZ=Dothistroma	0	0	6	6
DLV=Venturia spp	0	0	51,227	51,227
Total Diseases=	0	152	51,233	51,386
	CFR	NIFR	SIFR	PROV
Animals
AB=Bear	0	139	0	140
AP=Porcupine	0	0	24	24
AD=Deer	0	0	2	2
Total Animals=	0	139	26	165
	CFR	NIFR	SIFR	PROV
Total Other=	10,756	70,397	212,064	293,217
	CFR	NIFR	SIFR	PROV
Total =	293,930	5,472,020	4,993,482	10,618,639

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, Cassiar and Sunshine Coast due to weather and resource constraints.

(2) Fire data was collected by the overview survey. MOF Protection Branch and Ministry of Sustainable Resource Management have more precise records of area burned but the data was not available at the time of this posting.

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


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