Forest Health Conditions

2008 Aerial Overview Survey Summary Table

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

Surveys conducted from July to October, 2008

Disturbance Type (Pest Code)	Hectares affected (all severity classes)
	CFR	SIFR	NIFR	PROV
Bark Beetles
IBM=Mountain Pine Beetle	124,844	4,812,915	2,904,234	7,841,993
IBS=Spruce Beetle	313	20,539	7,023	27,874
IBB=Western Balsam Bark Beetle	23,424	184,846	323,795	532,064
IBD=Douglas-fir Beetle	1,706	94,302	1,045	97,053
IBF=Fir engraver beetle	0	0	0	0
IBI=Engraver beetle	0	0	1	1
IBW=Western Pine Beetle	0	0	0	0
IBL=Lodgepole Pine Beetle	0	0	0	0
IBT=Red Turpentine Beetle	0	0	0	0
IB=Unknown Beetle	7	0	0	7
Total All BB=	150,293	5,112,601	3,236,098	8,498,992
	CFR	SIFR	NIFR	PROV
Defoliators
ID=Defoliators	371	697	770	1,838
IDH=Western Blackheaded Budworm	0	0	0	0
IDB=2-Year Budworm	0	54,136	2,483	56,619
IDE=Spruce Budworm	0	0	0	0
IDL=Western Hemlock Looper	0	537	0	537
IDS=Conifer Sawflies	0	0	0	0
IDK=Northern Tent Caterpillar	0	0	0	0
IDF=Forest Tent Caterpillar	0	9,645	540	10,185
IDW=Western Spruce Budworm	16,016	766,224	0	782,240
IDN=Birch Leaf Miner	0	738	0	738
IDU=Satin Moth	0	127	0	127
IAB=Balsam Woolly Adelgid	6	0	0	6
IAS=Green Spruce Aphid	0	0	0	0
IDI=Pine needle sheathminer	0	0	0	0
IDT=Douglas-fir Tussock Moth	0	2,597	0	2,597
IDX=Large Aspen Tortrix	0	0	1,546	1,546
IDP=Larch Sawfly	0	0	0	0
IDR=Alder Sawfly	427	0	0	427
IDZ=False Hemlock Looper	0	0	0	0
ID2=Bruce Spanworm	0	0	97,804	97,804
ID6=Aspen Leaf Miner	0	10,827	5,814	16,641
Total Defoliators=	16,821	845,827	108,956	971,304
	CFR	SIFR	NIFR	PROV
Other
NB=Fire	133	3,836	25,640	29,609
NCA=Aspen Decline	0	0	105	105
NCB=Birch Decline	0	0	0	0
NCY=Yellow Cedar Decline	41,972	0	5,158	47,130
NW=Windthrow	1,015	3,625	1,158	5,798
ND=Drought	37	0	200	237
NF=Flooding	182	85	1,692	1,959
NGK=Shoot/Bud Frost Kill	0	0	0	0
NS=Slide	319	23	1,992	818
NR=Redbelt	0	0	0	0
NY=Snow/Ice	0	0	0	0
Total Abiotics=	43,725	7,618	35,945	87,288
	CFR	SIFR	NIFR	PROV
Diseases
DF=Unknown Foliar Disease	0	0	0	0
DFL=Pine Needle Cast	0	0	16,912	16,912
DRA=Armillaria Root Disease	0	0	0	0
DR=Unknown Root Disease	111	0	0	111
DRL=Laminated Root Disease	626	0	0	626
DMP=Lodgepole Pine Dwarf Mistletoe	0	0	0	0
DSB=White Pine Blister Rust	167	0	0	167
DSC=Comandra Blister Rust	0	0	0	0
DFH=Larch Needle Blight	0	12,285	0	12,285
DFR=Douglas-fir Needle Cast	0	471	0	471
DRB=Blackstain root disease	0	0	0	0
DFM=Larch Needle Cast	0	0	0	0
DFS=Redband (Dothistroma) Needle Blight	0	0	53,505	53,505
DL=Unkown dieback	0	0	0	0
DLV=Venturia spp	0	0	1,189	1,189
PDT=Cedar Leaf Blight	0	0	0	0
Total Diseases=	903	12,756	71,605	85,264
	CFR	SIFR	NIFR	PROV
Animals
AB=Bear	22	0	0	22
AC=Cattle	0	0	0	0
AP=Porcupine	0	0	0	0
AD=Deer	0	0	0	0
Total Animals=	22	0	0	22
	CFR	SIFR	NIFR	PROV
Total Other=	44,651	20,374	107,550	172,575
	CFR	SIFR	NIFR	PROV
Total =	211,764	6,019,952	3,452,604	9,642,872

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, approximately 73% of the forested land base was surveyed. Areas not flown were portions of the Mackenzie, Dawson Creek, Mid-Coast and Cassiar areas due to weather and resource constraints. Portions of the southern Prince George Forest District were flown very late in the season due to resource constraints and poor flying weather.

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

Last updated on January 30, 2009
The contact for this web page is: tim.ebata@gov.bc.ca


	• Top • Copyright • Disclaimer • Privacy	• Feedback