FRST 351 - Forest Pathology

Diseases to Know

Pathogens listed below are eligible for the ID exam.  In the exam a photo of a specimen will be shown for 1 minute.  As below, the 3-digit codes as well as Latin and common names will be provided.  Images sources for studying:

• Tree Doctor - use Pest Info or Images tabs

• Common Tree Diseases of BC

• Field Guide to Forest Damage - some images same as link above

• Damage Agents of Alaska

• Forestry Images Org

DECAYS

Cryptoporus volvatus – pouch fungus

Echindontium tinctorum (DDE) – Indian paint fungus

Fomes fomentarius (DDB) – tinder conk

Fomitopsis canjanderi – yellow-brown top rot (rose conk)

Fomitopsis officinalis (DDQ) – elephant’s foot, quinine conk

Fomitopsis pinicola (DDF) – red belt conk

Ganoderma applanatum (DDA) – artist’s conk (cow pie conk)

Ganoderma tsugae – varnish conk

Gleophyllum sepiarium – the slash conk

Laetiporus sulphureus (DDD) – chicken of the woods (sulfur conk)

Phaeolus schweinitzii (DDS) – velvet conk

Phellinus ignarius (DDH) – false tinder conk

Phellinus pini (DDP) – red ring rot

Phellinus robustus – robustus conk (woody layered bracket conk)

Piptoporus betulinus – birch bracket conk

Trametes versicolor – rainbow conk (turkey tail)

ROOT DIEASES

DRL Phellinus weirii – laminated root rot

DRA Armillaria ostoyae – shoe string root rot

DRT Inonotus tomentosus – tomentosus root rot

DRN Hetreobasidion annosum – annosus root rot

DRB Leptographium wageneri – black stain

DRR Rhizina undulata – tea break fungus

DWARF MISTLETOES

DMP Arcuethobium americanum – pine dwarf mistletoe

DMH Arcuethobium tsugense – hemlock dwarf mistletoe

DML Arcuethobium laricis – larch dwarf mistletoe

DMF Arcuethobium douglasii – Douglas-fir dwarf mistletoe

STEM RUSTS & CANKERS

DSB Cronartium ribicola – white pine blister rust

DSC Cronartium comandra – comandra rust

DSS Cronartium coleosporoides – stalactiform rust

DSG Endocronartium harknessii – w. gall rust

DSA Atropellis piniphila – atropellis canker

DBS Chrysomyxa arctostaphyli – spruce broom rust

DBF Melampsorrela caryophyllacearum – fir broom rust

DFE Elytroderma deformans – Elytroderma needle cast

CRITTERS

AZ Beaver

AP Porcupine

AB Bear

AX Sap Sucker