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.
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Packard’s gridle moth
Scientific name: Enypia packardata (Taylor)
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Pale winged grey
Scientific name: Iridopsis ephyraria (Wlk.)
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Paleacrita vernata
(Peck)
Common name: Spring cankerworm
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Pales weevil
Scientific name: Hylobius pales (Herbst)
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Paraclemensia acerifoliella
(Fitch)
Common name: Maple leafcutter
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Paradiplosis tumifex
Gagné
Common name: Balsam gall midge
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Paraphytomyza populicola
(Walker)
Common name: Lombardy leafminer
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Pear Sawfly (Pear slug)
Scientific name: Caliroa cerasi (Linnaeus)
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Pear thrips
Scientific name: Taeniothrips inconsequens (Uzel)
- Pero behrensaria (Packard)
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Pero moth
Scientific name: Pero morrisonaria (Hy. Edwards)
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Petrova albicapitana
(Busck)
Common name: Northern pitch twig moth
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Petrova metallica
(Busck)
Common name: Metallic pitch blister moth
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Phantom hemlock looper
Scientific name: Nepytia phantasmaria (Strecker)
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Phloeosinus sequoiae
Hopkins
Common name: Redwood bark beetle
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Phyllobius intrusus
Kono
Common name: Arborvitae weevil
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Phyllocnistis populiella
Chambers
Common name: Aspen serpentine leafminer
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Physokermes piceae
(Schr.)
Common name: Spruce bud scale
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Pikonema alaskensis
(Rohwer)
Common name: Yellowheaded spruce sawfly
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Pikonema dimmockii
Cresson
Common name: Greenheaded spruce sawfly
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Pine bark adelgid
Scientific name: Pineus strobi (Hartig)
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Pine false webworm
Scientific name: Acantholyda erythrocephala (L.)
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Pine leaf adelgid
Scientific name: Pineus pinifoliae (Fitch)
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Pine measuringworm moth
Scientific name: Hypagyrtis piniata (Pack.)
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Pine needle scale
Scientific name: Chionaspis pinifoliae (Fitch)
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Pine needle sheathminer
Scientific name: Zelleria haimbachi Busck
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Pine shoot beetle
Scientific name: Tomicus piniperda (L.)
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Pine spittlebug
Scientific name: Aphrophora cribrata (Wlk)
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Pine tortoise scale
Scientific name: Toumeyella parvicornis (Cockerell)
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Pine tussock moth
Scientific name: Dasychira grisefacta (Dyar)
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Pine white
Scientific name: Neophasia menapia (C. & R. Felder)
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Pine zale
Scientific name: Zale duplicata (Bethune)
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Pissodes nemorensis
Germar
Common name: Northern pine weevil
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Pissodes strobi
(Peck)
Common name: White pine weevil
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Pissodes terminalis
(Hopping)
Common name: Lodgepole terminal weevil
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Pleroneura brunneicornis
Rohwer
Common name: Balsam shootboring sawfly
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Podosesia syringae
[Harr.]
Common name: Lilac borer (Ash borer)
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Poplar borer
Scientific name: Saperda calcarata Say
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Poplar bud gall mite
Scientific name: Aceria parapopuli (Keif.)
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Poplar carpenterworm
Scientific name: Acossus centerensis [Lint.]
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Poplar gall borer
Scientific name: Saperda populnea moesta LeConte
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Poplar-and-willow borer
Scientific name: Cryptorhynchus lapathi (Linnaeus).
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Prionoxystus robiniae
(Peck)
Common name: Carpenterworm
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Pristiphora erichsonii
(Hartig)
Common name: Larch sawfly
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Pristiphora geniculata
(Hartig.)
Common name: Mountain-ash sawfly
- Pristiphora leechi Wong and Ross
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Profenusa thomsoni
(Konow)
Common name: Ambermarked birch leafminer
- Promylea lunigerella Ragonot
- Protoboarmia porcelaria (Guenee)
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Purplestriped shootworm
Scientific name: Zeiraphera unfortunana Powell