2008
DOI: 10.1603/0046-225x(2008)37[494:pawthw]2.0.co;2
|View full text |Cite
|
Sign up to set email alerts
|

Predators Associated with the Hemlock Woolly Adelgid (Hemiptera: Adelgidae) in the Pacific Northwest

Abstract: The hemlock woolly adelgid, Adelges tsugae Annand (Hemiptera: Adelgidae), is causing widespread mortality of eastern hemlock, Tsuga canadensis L. Carrière, in the eastern United States. In western North America, feeding by A. tsugae results in negligible damage to western hemlock, Tsuga heterophylla (Raf.) Sargent. Host tolerance and presence of endemic predators may be contributing to the relatively low levels of injury to T. heterophylla caused by A. tsugae. Field surveys of the predator community associated… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1

Citation Types

0
33
0

Year Published

2008
2008
2014
2014

Publication Types

Select...
6

Relationship

1
5

Authors

Journals

citations
Cited by 18 publications
(33 citation statements)
references
References 29 publications
0
33
0
Order By: Relevance
“…Many generalist and several exotic predators feed on HWA (Cheah et al 2004;Kohler et al 2008). Chrysarobin and chrysophanol are known to function in some coleopteran and hemipteran families as feeding deterrents against generalist predators (Kayser 1985;Hilker and Schulz 1991).…”
Section: Resultsmentioning
confidence: 99%
“…Many generalist and several exotic predators feed on HWA (Cheah et al 2004;Kohler et al 2008). Chrysarobin and chrysophanol are known to function in some coleopteran and hemipteran families as feeding deterrents against generalist predators (Kayser 1985;Hilker and Schulz 1991).…”
Section: Resultsmentioning
confidence: 99%
“…Hemlock woolly adelgids were excluded from arthropod diversity and food availability analyses because their size (0.4-1.4 mm in length [Kohler, 2007]) is smaller than typical insectivorous bird prey (Jansson and von Brömssen, 1981, as cited in Pettersson et al, 1995), and there is no documentation in the literature of insectivorous birds preying on hemlock woolly adelgid. Ovisacs and winged forms of hemlock woolly adelgids were analyzed separately from one another because of their different life strategies in hemlocks.…”
Section: Arthropodsmentioning
confidence: 99%
“…In a concurrent study, we surveyed predators associated with A. tsugaeÐinfested western hemlock in western Oregon and Washington for 2 yr to identify potential candidates for A. tsugae biological control in the eastern United States (Kohler et al 2008). Two species of Chamaemyiidae (Diptera) that are specialist predators of adelgids, Leucopis argenticollis (Zetterstedt: Chamaemyiidae) and L. atrifacies (Aldrich), were abundant and seemed to be synchronized with the A. tsugae life cycle (McAlpine and Tanasijtshuk 1972, Greathead 1995, Tanasijtshuk 2002, Kohler et al 2008).…”
mentioning
confidence: 99%
“…Two species of Chamaemyiidae (Diptera) that are specialist predators of adelgids, Leucopis argenticollis (Zetterstedt: Chamaemyiidae) and L. atrifacies (Aldrich), were abundant and seemed to be synchronized with the A. tsugae life cycle (McAlpine and Tanasijtshuk 1972, Greathead 1995, Tanasijtshuk 2002, Kohler et al 2008). However, several species of Chamaemyiidae that feed on adelgids, including Leucopis spp., have been shown to be susceptible to parasitism by Þgitid and pteromalid (Hymenoptera) pupal parasitoids, which could limit their effectiveness as biological control agents (Wilson 1938, Brown and Clark 1956, Mitchell 1962, Rao and Ghani 1972.…”
mentioning
confidence: 99%
See 1 more Smart Citation