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Foliage or buds of conifers

Insects and mites

Aphids (plant lice)

Scientific name: Aphis sp.

Arborvitae weevil

Scientific name: Phyllobius intrusus Kono

Balsam fir sawfly

Scientific name: Neodiprion abietis (Harris)

Balsam gall midge

Scientific name: Paradiplosis tumifex Gagné

Balsam shootboring sawfly

Scientific name: Pleroneura brunneicornis Rohwer

Balsam twig aphid

Scientific name: Mindarus abietinus Koch

Balsam woolly adelgid

Scientific name: Adelges piceae (Ratzeburg)

  • Revision 2024

Brown cedar leafminer

Scientific name: Coleotechnites thujaella (Kft)

Brownlined looper

Scientific name: Neoalcis californiaria (Packard)

Ceanothus silk moth

Scientific name: Hyalophora euryalis (Walker)

Common emerald

Scientific name: Hemithea aestivaria (Hubner)

Cooley spruce gall adelgid

Scientific name: Adelges cooleyi (Gillette)

  • Revision 2024

Cypress leaftier

Scientific name: Epinotia subviridis Heinrich

Dioryctria moth

Scientific name: Dioryctria pseudotsugella Munroe

Douglas-fir bud moth

Scientific name: Zeiraphera hesperiana (Mutuura & Freeman)

Douglas-fir tussock moth

Scientific name: Orgyia pseudotsugata (McDunnough)

  • Revision 2025

Eastern blackheaded budworm

Scientific name: Acleris variana (Fernald)

  • Revision 2024

Eastern pine shoot borer

Scientific name: Eucosma gloriola Heinrich

Eastern spruce gall adelgid

Scientific name: Adelges abietis (Linnaeus)

  • Revision 2024

European pine sawfly

Scientific name: Neodiprion sertifer (Geoffroy)

  • Revision 2024

European pine shoot moth

Scientific name: Rhyacionia buoliana (Denis and Schiffermuller)

European pineneedle midge

Scientific name: Contarinia baeri (Prell)

European spruce sawfly

Scientific name: Gilpinia hercyniae (Hartig)

  • Revision 2024

Filament bearer

Scientific name: Nematocampa resistaria (Herrich-Schaffer)

Fir coneworm

Scientific name: Dioryctria abietivorella (Grote)

Fir needle inchworm

Scientific name: Eupithecia lariciata (Frey.)

Gelechiid moth

Scientific name: Chionodes continuella (Zeller)

Golden buprestid

Scientific name: Buprestis aurulenta Linnaeus

Gray spruce looper

Scientific name: Caripeta divisata Walker

Green larch looper

Scientific name: Semiothisa sexmaculata (Packard)

Green spruce aphid; spruce aphid

Scientific name: Elatobium abietinum (Walker)

Green velvet looper

Scientific name: Epirrita autumnata (Harrison)

Greenheaded spruce sawfly

Scientific name: Pikonema dimmockii Cresson

Greenstriped forest looper

Scientific name: Melanolophia imitata (Walker)

Greenstriped webspinning sawfly

Scientific name: Acantholyda balanata (MacGillivray)

Hemlock looper

Scientific name: Lambdina fiscellaria (Guenée)

Hemlock sawfly

Scientific name: Neodiprion tsugae Middleton

Introduced pine sawfly

Scientific name: Diprion similis (Hartig)

  • Revision 2024

Jack pine budworm

Scientific name: Choristoneura pinus pinus Freeman

  • Revision 2024

Jack pine resin midge

Scientific name: Cecidomyia resinicola (Osten Sacken)

Juniper webworm

Scientific name: Dichomeris marginella (Fabricius)

Larch casebearer

Scientific name: Coleophora laricella (Hubner)

Larch needleworm

Scientific name: Zeiraphera improbana (Walker)

Larch pug moth

Scientific name: Eupithecia annulata (Hulst)

Larch sawfly

Scientific name: Pristiphora erichsonii (Hartig)

  • Revision 2024

Lodgepole terminal weevil

Scientific name: Pissodes terminalis (Hopping)

Metallic pitch blister moth

Scientific name: Petrova metallica (Busck)

Northern pitch twig moth

Scientific name: Petrova albicapitana (Busck)

Northern tent caterpillar

Scientific name: Malacosoma californicum pluviale (Dyar)

Orange spruce needleminer

Scientific name: Coleotechnites piceaella (Kearfott)

Orange tortrix

Scientific name: Argyrotaenia citrana (Fernie)

Packard’s gridle moth

Scientific name: Enypia packardata (Taylor)

Pero moth

Scientific name: Pero morrisonaria (Hy. Edwards)

Phantom hemlock looper

Scientific name: Nepytia phantasmaria (Strecker)

Pine false webworm

Scientific name: Acantholyda erythrocephala (L.)

  • Revision 2024

Pine leaf adelgid

Scientific name: Pineus pinifoliae (Fitch)

Pine measuringworm moth

Scientific name: Hypagyrtis piniata (Pack.)

Pine needle scale

Scientific name: Chionaspis pinifoliae (Fitch)

Pine needle sheathminer

Scientific name: Zelleria haimbachi Busck

Pine shoot beetle

Scientific name: Tomicus piniperda (L.)

Pine tortoise scale

Scientific name: Toumeyella parvicornis (Cockerell)

Pine tussock moth

Scientific name: Dasychira grisefacta (Dyar)

Pine zale

Scientific name: Zale duplicata (Bethune)

Poplar-and-willow borer

Scientific name: Cryptorhynchus lapathi (Linnaeus).

Purplestriped shootworm

Scientific name: Zeiraphera unfortunana Powell

Red pine cone beetle

Scientific name: Conophthorus resinosae Hopkins

Red pine needle midge

Scientific name: Thecodiplosis piniresinosae Kearby and Benjamin

Red pine sawfly

Scientific names:
  • Neodiprion nanulus Schedl
    • Neodiprion nanulus contortae
    • Neodiprion nanulus nanulus
  • Revision 2024

Red-barred tortrix

Scientific name: Ditula angustiorana (Haworth)

Redheaded pine sawfly

Scientific name: Neodiprion lecontei (Fitch)

  • Revision 2024

Redlined conifer caterpillar

Scientific name: Feralia jocosa (Gn.)

Rusty tussock moth

Scientific name: Orgyia antiqua (L.)

Saddleback looper

Scientific name: Ectropis crepuscularia (Denis and Schiffermuller)

Silverspotted tiger moth

Scientific name: Lophocampa argentata (Packard)

Small pine looper

Scientific name: Eupithecia palpata Pack.

Speckled green fruitworm

Scientific name: Orthosia hibisci (Guenée)

Spruce bud moth

Scientific name: Zeiraphera canadensis Mutuura and Freeman

Spruce bud scale

Scientific name: Physokermes piceae (Schr.)

Spruce budworm

Scientific name: Choristoneura fumiferana (Clemens)

  • Revision 2024

Spruce climbing cutworm

Scientific name: Syngrapha alias (Ottolengui)

Spruce coneworm

Scientific name: Dioryctria reniculelloides Mutuura and Munroe

Spruce fir looper

Scientific name: Macaria signaria dispuncta (Walker)

Spruce needleworm, Paler dolichomia moth

Scientific name: Dolichomia thymetusalis (Walker)

Spruce spider mite

Scientific name: Oligonychus ununguis (Jacobi)

Spruce tip moth; redstriped needleworm

Scientific name: Epinotia radicana (Heinr.)

Spruce webspinning sawfly

Scientific name: Cephalcia fascipennis (Cresson)

Swaine jack pine sawfly

Scientific name: Neodiprion swainei Middleton

Threelined larch sawfly

Scientific name: Anoplonyx luteipes (Cresson)

Two-year cycle spruce budworm

Scientific name: Choristoneura occidentalis biennis (Freeman)

  • Revision 2024

Twolined larch sawfly

Scientific name: Anoplonyx laricivorus (Rohwer et Middleton)

Upright webspinning sawfly

Scientific name: Acantholyda verticalis (Cresson)

Western blackheaded budworm

Scientific name: Acleris gloverana (Walsingham)

Western false hemlock looper

Scientific name: Nepytia freemani (Munroe)

Western hemlock looper

Scientific name: Lambdina fiscellaria lugubrosa (Hulst)

Western larch sawfly

Scientific name: Anoplonyx occidens Ross

Western oak looper

Scientific name: Lambdina fiscellaria somniaria (Hulst)

Western pine elfin

Scientific name: Callophrys eryphon (Boisduval)

Western spruce budworm

Scientific name: Choristoneura occidentalis occidentalis Freeman

  • Revision 2024

Western webspinning sawfly

Scientific name: Cephalcia californica Middlekauff

White pine weevil

Scientific name: Pissodes strobi (Peck)

  • Revision 2024

White slaut

Scientific name: Tetracis cachexiata (Guenée)

Whitelined looper

Scientific name: Epirrita pulchraria (Taylor)

Whitetriangle leafroller

Scientific name: Clepsis persicana (Fitch)

Yellowheaded spruce sawfly

Scientific name: Pikonema alaskensis (Rohwer)

Yellowlined forest looper

Scientific name: Cladara limitaria (Walker)

Diseases caused by pathogens

Balsam fir tip blight

Pathogen name: Delphinella balsameae (Waterm.) E. Müller

Brown felt blight

Pathogen name: Herpotrichia juniperi (Duby) Petr.

Cedar leaf blight

Pathogen name: Didymascella thujina (E.J. Durand) Maire

  • Revision 2024

Conifer-aspen rust

Pathogen name: Melampsora medusae f. sp. tremuloidis Shain

  • Revision 2024

Conifer-poplar rust

Pathogen name: Melampsora occidentalis Jacks.

  • Revision 2024

Dothistroma needle blight

Pathogen name: Mycosphaerella pini Rost. in Munk

Douglas-fir needle cast

Pathogen names:
  • Rhabdocline epiphylla (Parker & Reid) J.K. Stone & D.S. Gernandt
  • Rhabdocline oblonga (Parker & Reid) J.K. Stone & D.S. Gernandt
  • Rhabdocline obovata (Parker & Reid) J.K. Stone & D.S. Gernandt
  • Rhabdocline pseudotsugae Syd. 
  • Rhabdocline weirii A.K. Parker & J. Reid
  • Revision 2024

Elytroderma disease

Pathogen name: Elytroderma deformans (Weir) Darker

  • Revision 2024

Fir broom rust

Pathogen name: Melampsorella elatina (Alb. & Schwein.) Arthur

  • Revision 2024

Fir-blueberry rust

Pathogen name: Pucciniastrum geoppertianum (Kuehn) Kleb.

Fir-fireweed rust

Pathogen name: Pucciniastrum epilobii G. Otth

Fir-oak-fern rust (Hyalopsora aspidiotus)

Pathogen name: Hyalopsora aspidiotus (Magn.) Magn.

Fir-polypody rust

Pathogen name: Milesina leviuscula (Dietel & Holw.) Hirats.

  • Revision 2024

Hemlock - Blueberry rust

Pathogen name: Naohidemyces vaccinii (Wint.) Sato, Katsuya et Hiratsuka

Hemlock-willow rust

Pathogen name: Melampsora epitea Thuem.

Larch needle cast

Pathogen name: Hypodermella laricis Tub.

Large-spored spruce – Labrador tea rust

Pathogen name: Chrysomyxa ledicola (Peck) Lagerh.

  • Revision 2024

Needle blight (Meria laricis)

Pathogen name: Meria laricis Vuillemin

Needle cast

Pathogen name: Isthmiella faullii (Darker) Darker

Needle cast (Bifusella linearis)

Pathogen name: Bifusella linearis (Peck) Höhn.

Needle cast (Lirula macrospora)

Pathogen name: Lirula macrospora (R. Hartig) Darker

Needle cast (Lophodermium pinastri )

Pathogen name: Lophodermium pinastri (Shrad.:Fr.) Chev.

Needle cast (Lophodermium seditiosum)

Pathogen name: Lophodermium seditiosum Minter, Staley, & Millar

Phomopsis canker of douglas-fir

Pathogen name: Diaporthe lokoyae Funk

Pine needle cast

Pathogen name: Lophodermella concolor (Dearn.) Darker

Sirococcus Shoot Blight

Pathogen name: Sirococcus conigenus (Dc.) Cannon & Minter

Small-spored spruce-Labrador tea rusts

Pathogen names:
  • Chrysomyxa nagodhii P.E. Crane
  • Chrysomyxa neoglandulosi P.E. Crane
  • Revision 2024

Snow blight

Pathogen name: Phacidium infestans P. Karst

Spruce broom rust

Pathogen name: Chrysomyxa arctostaphyli Dietel

  • Revision 2024

Tar spot needle cast

Pathogen name: Davisomycella ampla (J.J. Davis) Darker

Diseases and damage caused by other agents

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