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Any of various aphidlike insects of the family Adelgidae that infest conifers and usually secrete a waxy or woolly covering.

[From New Latin Adelgidae, family name, from Adelgēs, type genus, from -adelges (interpreted as "suckers"), in French Phytadelges, former adelgid family name (phyt(o)- + -adelges, literally "plant-suckers"), and French Zoadelges, former family of hemipterans including the bedbug (zo(o)- + -adelges, literally "animal-suckers"), both coined by French zoologist André Marie Constant Duméril (1774-1860), from adelgein, probably misreading of Greek amelgein, to milk, suck up, drain, drink; see melg- in Indo-European roots, or possibly misreading of athelgein, a rare verb said to mean the same thing as amelgein in a 4th-century ad Greek dictionary.]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.adelgid - any of various insects that feed and form galls on conifers
plant louse, louse - any of several small insects especially aphids that feed by sucking the juices from plants
Adelges piceae, balsam woolly aphid - a variety of adelgid
Adelges abietis, spruce gall aphid - a variety of adelgid
pine leaf aphid, Pineus pinifoliae - a variety of adelgid
woolly adelgid - an insect that feeds on hemlocks; its egg sacs are small fuzzy white balls like artificial snow on a Christmas tree
References in periodicals archive ?
The hemlock woolly adelgid is responsible for the death of large numbers of hemlock trees from the Carolinas to New England, and it's causing lots of problems.
The woolly adelgid has chewed its way up the crest of the Appalachian Mountains from the Carolinas to Canada.
Contract Awarded for Finger lakes nf hemlock woolly adelgid tree treatment idiq
Sasajiscymnus tsugae (Coleoptera: Coccinellidae) has been reared as a predator that specifically targets the Hemlock Woolly Adelgid (HWA, Hemiptera: Adelgidae: Adelges tsugae), a very destructive pest of the Eastern and Carolina Hemlock.
Pennsylvania's state tree is under deadly attack by the Hemlock woolly adelgid," said DCNR Secretary Ellen Ferretti, "and our Bureau of Forestry has mounted a comprehensive and science-based battle plan that addresses both the non-native, invasive insect and the invaluable forest species it is killing.
The reason being, is that the bitter cold kills the hemlock's adversary, the hemlock woolly adelgid, a tiny insect pest.
The name of this bug is the hemlock woolly adelgid.
For example, North American hosts naive to alien herbivores were more susceptible than were their coevolved congeners in the case of hemlock woolly adelgid (Adelges tsugae Annand) and eastern North American hemlocks (Tsuga spp.
Falcone and DeWald (2010) detected no difference in bird densities between sites treated with Imidacloprid to kill hemlock wooly adelgid (Adelges tsugae) and untreated sites, even though larval Lepidoptera were reduced in treated sites.
Eastern hemlock is threatened with decline due to the hemlock woolly adelgid (Adelges tsugae) with outbreaks causing widespread mortality of hemlock in Connecticut and elsewhere in the Appalachian Mountains (Orwig et al.
But over the last few decades, the eastern and Carolina hemlocks have been under attack by a small sucking insect called the hemlock woolly adelgid (Adelges tsugae), or HWA.
The latest threat to the forest emerged in 2002 when another Asian woolly adelgid that kills hemlock, another keystone species of the forest, entered the park.