Host suitability and preference of Laricobius nigrinus (Fender) (Coleoptera: Derodontidae): a predatory beetle for potential biological control of Adelges tsugae (Annand) (Homoptera: Adelgidae)

Gabriella Zilahi-Balogh; Scott M. Salom; L. T. Kok

Treesearch

Host suitability and preference of Laricobius nigrinus (Fender) (Coleoptera: Derodontidae): a predatory beetle for potential biological control of Adelges tsugae (Annand) (Homoptera: Adelgidae)

Informally Refereed

Authors:

Gabriella Zilahi-Balogh, Scott M. Salom, L. T. Kok

Year:

2000

Type:

General Technical Report

Station:

Northern Research Station

Source:

In: McManus, Katherine A.; Shields, Kathleen S.; Souto, Dennis R., eds. Proceedings: Symposium on sustainable management of hemlock ecosystems in eastern North America. Gen. Tech. Rep. NE-267. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. p.110.

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Abstract

Laricobius nigrinus (Coleoptera: Derodontidae) is being evaluated as a potential biological control agent of hemlock woolly adelgid (HWA), Adelges tsugae (Homoptera: Adelgidae) Annand in eastern North America. HWA is not considered a pest on western species of hemlock (McClure et al. 1996). A combination of natural enemies and host resistance likely play an important role in maintaining levels of HWA below economic thresholds. We are studying L. nigrinus because it may play a role in regulating HWA abundance.

Parent Publication

Proceedings: symposium on sustainable management of hemlock ecosystems in eastern North America

Citation

Zilahi-Balogh, Gabriella; Salom, Scott M.; Kok, L. T. 2000. Host suitability and preference of Laricobius nigrinus (Fender) (Coleoptera: Derodontidae): a predatory beetle for potential biological control of Adelges tsugae (Annand) (Homoptera: Adelgidae). In: McManus, Katherine A.; Shields, Kathleen S.; Souto, Dennis R., eds. Proceedings: Symposium on sustainable management of hemlock ecosystems in eastern North America. Gen. Tech. Rep. NE-267. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. p.110.