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Spread and dispersal of emerald ash borer (Coleoptera: Buprestidae): estimating the spatial dynamics of a difficult-to-detect invasive forest pest

Published online by Cambridge University Press:  22 April 2015

Nathan W. Siegert*
Affiliation:
US Forest Service, Northeastern Area State and Private Forestry, Forest Health Protection Durham, New Hampshire 03824, United States of America
Rodrigo J. Mercader
Affiliation:
Department of Biology, Washburn University, Topeka, Kansas 66621, United States of America
Deborah G. McCullough
Affiliation:
Department of Entomology and Department of Forestry, Michigan State University, East Lansing, Michigan 48824, United States of America
*
1Corresponding author (e-mail: nwsiegert@fs.fed.us).

Abstract

The emerald ash borer (EAB), Agrilus planipennis Fairmaire (Coleoptera: Buprestidae), is a destructive invasive pest that threatens North American ash (Fraxinus (Oleaceae)) and inflicts substantial aesthetic, ecological, and economic damage in urban forests and rural woodlands. Understanding adult EAB dispersal and spread of infestations is critical to effectively manage and mitigate its potential impact in North America and elsewhere. Challenges of quantifying short-distance and long-distance movement of adult EAB in the field remain exceptionally difficult. Here we review our current understanding of EAB spread. Research to date suggests natural spread of EAB populations is variable and influenced by local environmental conditions, but limited to only a few km per year. In contrast, long-distance spread resulting from anthropogenic movement of infested ash material, such as nursery trees or firewood, can greatly increase local and regional rate of spread through the formation of satellite populations. Key areas in need of future research are highlighted.

Information

Type
Original Article
Copyright
© Entomological Society of Canada 2015. Parts of this work are that of the US Government and therefore such parts are not subject to copyright protection in the United States 

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