Insects and mites
Insects and mites can damage the leaves, branches, roots, or stems of trees, either directly by feeding on these structures or indirectly by acting as vectors transmitting diseases. The damage can range from relatively minor issues, such as a negative affect on plant appearance, to more severe issues, including reduced tree growth and even tree death. Insects and mites, however, also play important ecological roles in forests by decomposing and recycling organic matter and nutrients, pollinating flowers, and serving as food sources for wildlife. Many insects and mites, acting as natural enemies (i.e., predators, parasitoids, or parasites) of pests, play a beneficial role in reducing pest populations. The study of insects is referred to as entomology, while the study of mites and ticks is called acarology. Insects and mites are classified according to a taxonomic system.
Index of common and scientific names of insects and mites
The insect or mite entries have sections containing nomenclature and taxonomy; general information and importance; distribution and hosts; symptoms and signs; life cycle; damage; prevention and management; selected references; and photographs of various life stages and damage.
Acalitus rudis (Canestrini)
Common name: Birch budgall mite
Acantholyda balanata (MacGillivray)
Common name: Greenstriped webspinning sawfly
Acantholyda erythrocephala (L.)
Common name: Pine false webworm
Acantholyda verticalis (Cresson)
Common name: Upright webspinning sawfly
Aceria elongatus (Hodgkiss)
Common name: Crimson erineum mite
Aceria parapopuli (Keif.)
Common name: Poplar bud gall mite
Acericecis ocellaris (Osten Sacken)
Common name: Ocellate gall midge
Acleris gloverana (Walsingham)
Common name: Western blackheaded budworm
Acleris variana (Fernald)
Common name: Eastern blackheaded budworm
Acossus centerensis [Lint.]
Common name: Poplar carpenterworm
Adelges abietis (Linnaeus)
Common name: Eastern spruce gall adelgid
Adelges cooleyi (Gillette)
Common name: Cooley spruce gall adelgid
Adelges piceae (Ratzeburg)
Common name: Balsam woolly adelgid
Adelges tsugae Annand
Common name: Hemlock woolly adelgid
Agrilus anxius Gory
Common name: Bronze birch borer
Agrilus bilineatus (Weber)
Common name: Twolined chestnut borer
Agrilus planipennis Fairmaire
Common name: Emerald ash borer
Alsophila pometaria [Harris]
Common name: Fall cankerworm
Ambermarked birch leafminer
Scientific name: Profenusa thomsoni (Konow)
Ambrosia beetle
Scientific name: Gnathotrichus sulcatus (LeConte)
Amphibolips quercusinanis (Osten Sacken)
Common name: Large oakapple gall
Anatis mali (Say)
Common name: Eyespotted lady beetle
Anoplonyx laricivorus (Rohwer et Middleton)
Common name: Twolined larch sawfly
Anoplonyx luteipes (Cresson)
Common name: Threelined larch sawfly
Anoplonyx occidens Ross
Common name: Western larch sawfly
Aphids (plant lice)
Scientific name: Aphis sp.
Aphrophora cribrata (Wlk)
Common name: Pine spittlebug
Aproceros leucopoda Takeuchi
Common name: Elm zigzag sawfly
Arborvitae leafminer
Scientific name: Argyresthia thuiella (Packard)
Arborvitae weevil
Scientific name: Phyllobius intrusus Kono
Archips cerasivorana (Fitch)
Common name: Uglynest caterpillar
Arge pectoralis (Leach)
Common name: Birch sawfly
Argyresthia cupressella Walshingham
Common name: Cypress tip moth
Argyrotaenia citrana (Fernie)
Common name: Orange tortrix
Ashflower gall
Scientific name: Eriophyes fraxiniflora Felt
Asian longhorned beetle
Scientific name: Anoplophora glabripennis (Motschulsky)
Aspen carpenterworm
Scientific name: Acossus populi (Walker)
Aspen serpentine leafminer
Scientific name: Phyllocnistis populiella Chambers
Aspen twoleaf tier
Scientific name: Enargia decolor (Walker)
- Abagrotis glenni (Buckett)
-
Acalitus rudis
(Canestrini)
Common name: Birch budgall mite
-
Acantholyda balanata
(MacGillivray)
Common name: Greenstriped webspinning sawfly
-
Acantholyda erythrocephala
(L.)
Common name: Pine false webworm
-
Acantholyda verticalis
(Cresson)
Common name: Upright webspinning sawfly
-
Aceria elongatus
(Hodgkiss)
Common name: Crimson erineum mite
-
Aceria parapopuli
(Keif.)
Common name: Poplar bud gall mite
-
Acericecis ocellaris
(Osten Sacken)
Common name: Ocellate gall midge
-
Acleris gloverana
(Walsingham)
Common name: Western blackheaded budworm
-
Acleris variana
(Fernald)
Common name: Eastern blackheaded budworm
-
Acossus centerensis
[Lint.]
Common name: Poplar carpenterworm
-
Adelges abietis
(Linnaeus)
Common name: Eastern spruce gall adelgid
-
Adelges cooleyi
(Gillette)
Common name: Cooley spruce gall adelgid
-
Adelges piceae
(Ratzeburg)
Common name: Balsam woolly adelgid
-
Adelges tsugae
Annand
Common name: Hemlock woolly adelgid
-
Agrilus anxius
Gory
Common name: Bronze birch borer
-
Agrilus bilineatus
(Weber)
Common name: Twolined chestnut borer
-
Agrilus planipennis
Fairmaire
Common name: Emerald ash borer
-
Alsophila pometaria
[Harris]
Common name: Fall cankerworm
-
Ambermarked birch leafminer
Scientific name: Profenusa thomsoni (Konow)
-
Ambrosia beetle
Scientific name: Gnathotrichus sulcatus (LeConte)
-
Amphibolips quercusinanis
(Osten Sacken)
Common name: Large oakapple gall
-
Anatis mali
(Say)
Common name: Eyespotted lady beetle
-
Anoplonyx laricivorus
(Rohwer et Middleton)
Common name: Twolined larch sawfly
-
Anoplonyx luteipes
(Cresson)
Common name: Threelined larch sawfly
-
Anoplonyx occidens
Ross
Common name: Western larch sawfly
-
Aphids (plant lice)
Scientific name: Aphis sp.
-
Aphrophora cribrata
(Wlk)
Common name: Pine spittlebug
-
Aproceros leucopoda
Takeuchi
Common name: Elm zigzag sawfly
-
Arborvitae leafminer
Scientific name: Argyresthia thuiella (Packard)
-
Arborvitae weevil
Scientific name: Phyllobius intrusus Kono
-
Archips cerasivorana
(Fitch)
Common name: Uglynest caterpillar
- Archips tsugana (Powell)
-
Arge pectoralis
(Leach)
Common name: Birch sawfly
-
Argyresthia cupressella
Walshingham
Common name: Cypress tip moth
-
Argyrotaenia citrana
(Fernie)
Common name: Orange tortrix
- Argyrotaenia dorsalana (Dyar)
-
Ashflower gall
Scientific name: Eriophyes fraxiniflora Felt
-
Asian longhorned beetle
Scientific name: Anoplophora glabripennis (Motschulsky)
-
Aspen carpenterworm
Scientific name: Acossus populi (Walker)
-
Aspen serpentine leafminer
Scientific name: Phyllocnistis populiella Chambers
-
Aspen twoleaf tier
Scientific name: Enargia decolor (Walker)