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; tree parts affected; symptoms and signs; life cycle; damage; prevention and management; photographs of various life stages and damage; and selected references.
Hemlock looper
-
Lambdina fiscellaria
(Guenée)
- Lambdina fiscellaria fiscellaria
- Lambdina fiscellaria lugubrosa
- Lambdina fiscellaria somniaria
-
Hemithea aestivaria
(Hubner)
Common name: Common emerald
-
Hemlock looper
Scientific names:
-
Lambdina fiscellaria
(Guenée)
- Lambdina fiscellaria fiscellaria
- Lambdina fiscellaria lugubrosa
- Lambdina fiscellaria somniaria
-
Lambdina fiscellaria
(Guenée)
-
Hemlock sawfly
Scientific name: Neodiprion tsugae Middleton
-
Hemlock woolly adelgid
Scientific name: Adelges tsugae Annand
-
Heterarthrus nemoratus
(Fallen)
Common name: Late birch leaf edgeminer
-
Heterocampa guttivitta
Walker
Common name: Saddled prominent
-
Hyalophora euryalis
(Walker)
Common name: Ceanothus silk moth
- Hydriomena irata Swett
- Hydriomena speciosata (Packard)
-
Hylesinus californicus
[Swaine]
Common name: Western ash bark beetle
-
Hylobius congener
Dalla Torre, Schenkling and Marshall
Common name: Seedling debarking weevil
-
Hylobius pales
(Herbst)
Common name: Pales weevil
-
Hylobius warreni
Wood
Common name: Warren root collar weevil
-
Hylurgopinus rufipes
(Eichhoff)
Common name: Native elm bark beetle
-
Hypagyrtis piniata
(Pack.)
Common name: Pine measuringworm moth
-
Hyphantria cunea
(Drury)
Common name: Fall webworm
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