Summary of Forest Health Conditions in the Prince George 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


IBM=Mountain Pine Beetle

not available

not available

not available

42802

39551

31,541

66,439

IBS=Spruce Beetle

not available

not available

not available

1

15524

46,335

76,083

IBB=Western Balsam Bark Beetle

not available

not available

not available

0

19163(1)

304,393

380,662

IBD=Douglas-fir Beetle

not available

not available

not available

19

5923

591

2,087

IBI=Engraver Beetles

not available

not available

not available

0

0

0

0

IBW=Western Pine Beetle

not available

not available

not available

0

0

0

0

Total All Bark Beetles

not available

not available

not available

42,822

80,161

382,860

382,860

(1) Reported only by Ft. St. James  & Prince George Districts 

 

Defoliators

Disturbance Type
(Pest Code)

1994

1995

1996

1997

1998

1999

2000


ID=Defoliators

0

0

0

0

0

265

0

IDH=Western Blackheaded Budworm

0

0

0

0

0

0

0

IDB=2-Year Budworm

8,000

58,000

78,310

400,000

145,196(2)

795,041

615,749

IDE=Spruce Budworm

0

0

0

0

0

1,265,965

1,575,072

IDL=Western Hemlock Looper

0

0

0

0

0

2,426

406

IDS=Conifer Sawflies

0

 

 

 

 

1,418

0

IDK=Northern Tent Caterpillar

 

 

 

 

 

0

0

IDF=Forest Tent Caterpillar

 

 

 

 

0

0

213,934

IDW=Western Spruce Budworm

0

0

0

0

0

0

0

IDN=Birch Leaf Miner

0

0

0

0

0

0

0

IDU=Satin Moth

0

0

0

0

0

0

0

IAS=Green Spruce Aphid

0

0

0

0

0

0

0

Total Defoliators

8,000

58,000

78,310

400,000

145,196

2,065,115

2,405,161

(2) only Ft. St. James District reported on defoliation from 94-98

 

Abiotic Factors

Disturbance Type
(Pest Code)

1994

1995

1996

1997

1998

1999

2000


NB=Fire

 

 

 

 

 

6,691

4,562

NW=Windthrow

 

 

 

 

 

602

109

ND=Drought

 

 

 

 

 

0

0

NF=Flooding

 

 

 

 

 

0

380

NR=Red Belt

 

 

 

 

 

0

0

NGK=Shoot/Bud Frost Kill

 

 

 

 

 

0

0

Total Abiotics

 

 

 

 

 

7,293

5,052


Diseases

Disturbance Type
(Pest Code)

1994

1995

1996

1997

1998

1999

2000


DFL=Pine Needle Cast

not recorded

not recorded

not recorded

not recorded

not recorded

0

0

DRA=Armillaria Root Disease

not recorded

not recorded

not recorded

not recorded

not recorded

0

0

DMP=Lodgepole Pine Dwarf Mistletoe

not recorded

not recorded

not recorded

not recorded

not recorded

2

0

DSB=White Pine Blister Rust

not recorded

not recorded

not recorded

not recorded

not recorded

0

0

DFH=Larch Needle Cast

not recorded

not recorded

not recorded

not recorded

not recorded

0

0

Total Diseases=

not recorded

not recorded

not recorded

not recorded

not recorded

2

0


Animals

Disturbance Type
(Pest Code)

1994

1995

1996

1997

1998

1999

2000


AB=Bear

0

0

0

0

0

0

0

AP=Porcupine

0

0

0

0

0

2

0

AD=Deer

0

0

0

0

0

0

0

Total Animals

0

0

0

0

0

2

0


Total Other (Abiotics, Diseases, Animals)

 

1994

1995

1996

1997

1998

1999

2000

 

495,344

556,793

897,211

174,364

1,945

7,294

5,052


Overall Total For Each Year

 

1994

1995

1996

1997

1998

1999

2000

 

697,091

619,951

980,076

412,269

225,784

2,455,270

2,935,484