Summary of Forest Health Conditions in the Cariboo Forest Region (1994 to 2000)

All forest health factors detected through aerial surveys by region. Data is the number of hectares affected (all severity classes combined)


Bark Beetles

Disturbance Type
(Pest Code)
1994 1995 1996 1997 1998 1999 2000

Mountain Pine Beetle
(IBM)

4,711

6,184

6,228

5,746

17,457

32,275

38,743

Spruce Beetle
(IBS)

344

152

447

130

1,429

2,933

1,718

Western Balsam Bark Beetle
(IBB)

8,222

8,939

6,903

4,012

17,138

19,237

15,097

Douglas-fir Beetle
(IBD)

22,308

679

1,463

789

543

769

3,135

Engraver Beetles
(IBI)

414

4

6

1

6

456

0

Western Pine Beetle
(IBW)

0

0

1

0

0

0

0

Total Bark Beetles

35,999

15,958

15,048

10,678

36,573

55,670

58,572


Defoliators

Disturbance Type
(Pest Code)

1994

1995

1996

1997

1998

1999

2000


Defoliators
(ID)

0

0

0

0

0

627

0

Western Blackheaded Budworm
(IDH)

0

0

0

0

0

0

0

2-Year Budworm
(IDB)

110,520

0

59,828

20,982

145196

18,071

0

Spruce Budworm
(IDE)

0

0

0

0

0

0

0

Western Hemlock Looper
(IDL)

0

0

0

0

0

0

31,681

Conifer Sawflies
(IDS)

0

 

 

 

 

0

0

Northern Tent Caterpillar
(IDK)

 

 

 

 

 

0

27

Forest Tent Caterpillar
(IDF)

55,228

47,200

2,489

1,094

0

702

0

Western Spruce Budworm
(IDW)

0

0

5,500

205,151

42,070

930

0

Birch Leaf Miner
(IDN)

0

0

0

0

0

0

169

Satin Moth
(IDU)

0

0

0

0

0

0

0

Green Spruce Aphid
(IAS)

0

0

0

0

0

0

0

Pine needle sheathminer
(IDI)

0

0

0

0

0

0

221

Total Defoliators

165,748

47,200

67,817

227,227

187,266

20,330

32,098


Abiotics

Disturbance Type
(Pest Code)

1994

1995

1996

1997

1998

1999

2000


Fire (NB)

0

0

0

0

0

0

46

Windthrow (NW)

3

151

1,191

1,645

696

108

194

Drought (ND)

0

0

0

0

0

0

0

Flooding (NF)

41

642

419

707

1,077

556

537

Red Belt (NR)

0

0

0

9,748

0

0

0

Shoot/Bud Frost Kill (NGK)

0

0

0

0

0

0

104

Total Abiotics

44

793

1,610

12,100

1,773

664

881


Diseases

Disturbance Type
(Pest Code)

1994

1995 1996 1997 1998 1999

2000


Pine Needle Cast (DFL)

495,300

556,000

895,601

162,264

0

138

43

Armillaria Root Disease (DRA)

not recorded

not recorded

not recorded

not recorded

172

0

0

Lodgepole Pine Dwarf Mistletoe (DMP)

not recorded

not recorded

not recorded

not recorded

not recorded

0

0

White Pine Blister Rust (DSB)

not recorded

not recorded

not recorded

not recorded

not recorded

0

0

Larch Needle Cast (DFH)

not recorded

not recorded

not recorded

not recorded

not recorded

0

0

Total Diseases

495,300

556,000

895,601

162,264

172

138

43


Animals

Disturbance Type
(Pest Code)

1994

1995

1996

1997

1998

1999

2000


Bear (AB)

0

0

0

0

0

0

0

Porcupine (AP)

0

0

0

0

0

0

0

Deer (AD)

0

0

0

0

0

0

0

Total Animals

0

0

0

0

0

0

0


  1. Total Other (Abiotics, Diseases & Animals)

  1994 1995 1996 1997 1998 1999 2000

 

495,344

556,793

897,211

174,364

1,945

802

924


Overall Totals Per Year

  1994 1995 1996 1997 1998 1999 2000

Total Year

697,091

619,951

980,076

412,269

225,784

76,802

91,595