Forest Health Conditions

2001 Aerial Overview Survey Summary

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

Disturbance Type (Pest Code)	Hectares affected (all severity classes)
Bark Beetles	VFR	CFR	KFR	PRFR	PGFR	NFR	Province
IBM=Mountain Pine Beetle	113,269	103,792	29,739	327,346	201,740	9,611	785,497
IBS=Spruce Beetle	449	1,197	1,855	65,323	31,751	21	100,599
IBB=Western Balsam Bark Beetle	16,096	42,355	23,181	739,258	248,274	3,536	1,072,701
IBD=Douglas-fir Beetle	94	3,474	4,631	0	1,878	4,795	14,873
IBI=Engraver Beetles	0	41	0	0	0	1	42
IBW=Western Pine Beetle	0	0	43	0	0	0	43
IBT=Red Turpentine Beetle	0	0	0	0	0	0	0
Total All BB=	127,973	150,859	59,450	1,131,927	483,644	17,967	1,971,820

Defoliators	VFR	CFR	KFR	PRFR	PGFR	NFR	Province
ID=Defoliators	0	0	0	0	0	851	851
IDH=Western Blackheaded Budworm	1,851	0	0	136	0	0	1,986
IDB=2-Year Budworm	0	20,297	0	0	100,963	0	121,260
IDE=Spruce Budworm	0	0	0	0	1,612,314	0	1,612,314
IDL=Western Hemlock Looper	4,445	2	301	2,021	0	33	6,801
IDS=Conifer Sawflies	87	0	0	0	0	0	87
IDK=Northern Tent Caterpillar	0	0	0	0	0	0	0
IDF=Forest Tent Caterpillar	0	0	0	1,230	59,164	21	60,415
IDW=Western Spruce Budworm	1,759	99,732	22,414	0	0	0	123,638
IDN=Birch Leaf Miner	0	0	4,466	0	0	0	4,466
IDU=Satin Moth	0	6,577	2,032	0	0	86	8,695
IAS=Green Spruce Aphid	0	0	0	0	0	0	0
IDI=Pine needle sheathminer	0	0	0	0	0	0	0
IDT=Douglas-fir Tussock Moth	0	0	49	0	0	0	49
IDZ=False Hemlock Looper	0	0	0	0	0	115	115
Total Defoliators=	8,141	126,607	29,263	3,387	1,772,440	991	1,940,829

Other	VFR	CFR	KFR	PRFR	PGFR	NFR	Province
NB=Fire	76	119	2,226	28	4,052	455	6,956
NW=Windthrow	0	15	16	47	0	345	423
ND=Drought	0	0	0	0	0	3	3
NF=Flooding	15	690	11	1,379	3,707	0	5,802
NGK=Shoot/Bud Frost Kill	0	273	0	0	0	0	273
NR=Redbelt	0	0	0	243	103	0	346
Total Abiotics=	91	1,097	2,253	1,697	7,862	803	13,803

Diseases (1)	VFR	CFR	KFR	PRFR	PGFR	NFR	Province
DFL=Pine Needle Cast	0	0	156	0	0	62	218
DRA=Armillaria Root Disease	0	0	0	0	1	113	114
DMP=Lodgepole Pine Dwarf Mistletoe	0	0	0	0	0	0	0
DSB=White Pine Blister Rust	1	0	0	0	0	45	45
DFH=Larch Needle Cast	0	0	0	0	0	0	0
DRB=Blackstain root disease	0	0	0	0	0	0	0
DLV=Venturia spp	0	0	0	22,439	162	0	22,601
Total Diseases=	1	0	156	22,439	163	220	22,978

Animals	VFR	CFR	KFR	PRFR	PGFR	NFR	Province
AB=Bear	925	0	0	0	0	347	1,272
AP=Porcupine	0	0	0	1,287	0	170	1,457
AD=Deer	0	0	0	0	0	33	33
Total Animals=	925	0	0	1,287	0	550	2,762

Total Other=	1,015	1,097	2,409	15,823	5,271	1,573	27,189
	VFR	CFR	KFR	PRFR	PGFR	NFR	Province
Total by Region =	139,066	220,010	91,122	1,160,737	2,261,355	20,531	3,892,822

(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.

A large proportion of the province was covered by the aerial overview survey in 2001. Only a small number of districts in (part of North Coast, portions of the Cassiar, South Island FD, Campbell River FD) were not flown due to a known lack of activity, limited time, poor weather and lack of funding. Operational data was included in this summary only from Ft. Nelson Forest District, the southern third of the Lakes FD and all of Cariboo Forest Region.

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


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