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Forest Tree Insect and Disease Diagnosis


Forest Growing Conditions

HOST SPECIES (select one)

Amablilis Fir - Abies amabilis
Grand Fir - Abies grandis
Alpine Fir - Abies lasiocarpa
Birch - Betula spp.
Pacific Dogwood - Cornus nuttallii
Tamarack Larch - Larix laricina
Western Larch - Larix occidentalis
Jack Pine - Pinus banksiana
Lodgepole Pine - Shore Pine - Pinus contorta
Engelmann Spruce - Picea engelmannii
White Spruce - Picea glauca
Black Spruce - Picea mariana
Douglas-Fir - Pseudotsuga menziesii
Western White Pine - Pinus monticola
Ponderosa Pine - Pinus ponderosa
Sitka Spruce - Picea sitchensis
Trembling Aspen - Populus tremuloides
Common Black Cotton Wood - Populus trichocarpa
Willow - Salix spp.
Western Hemlock - Tsuga heterophylla
Mountain Hemlock - Tsuga mertensiana
Western Redcedar - Thuja plicata

REGION (select one)

Prince George
Prince Rupert
Queen Charlottes

SIGNS AND SYMPTOMS (select all that apply)

Insect or Insect damage Present

Foliage Discolouration

Black foliage
Brown foliage
Grey foliage
Orange foliage
Purple foliage
Red foliage
White foliage
Yellow foliage
Scorched Appearance

Crown Damage

Broken stem
Dead branches
Needle drop
Shoot Damage

Crown Deformity

Branch/stem swellings
Shoot deformity
Crooked leaders
Multiple leaders
Stem/branch galls
Cone-like galls
Distorted needles
Stunted needles
Stunted shoots
Thick twigs
Swollen nodes/tips

Root Problems

Lack of laterals
Root rot
Swollen tap and lateral roots

Fruiting Bodies

Fruiting bodies on cankers
Fruiting bodies on needles
Fruiting bodies on fallen logs, roots, stumps
Fruiting bodies on stems/branches
Fruiting bodies on ground

Wood Stains

Red stain
Brown stain
Yellow stain
Blue/black stain

Wood Decay

Brown decay
Red decay


Other Signs and Symptoms

Boring or mining
Resin flow
Early cone opening
Distress cones
Webbing on shoots
Web tents
Insect nests - other than web tents
Pitch masses
Tufts of wool