invasive urban forest pest invades natural environments - Asian longhorned beetle in northeastern US hardwood forests

• Published in: Canadian journal of forest research Vol. 41; no. 9; pp. 1729 - 1742
• Main Authors: Dodds, Kevin J, Orwig, David A
• Format: Journal Article
• Language: English
• Published: Ottawa, ON NRC Research Press, National Research Council Canada 01.09.2011; NRC Research Press; National Research Council of Canada; Canadian Science Publishing NRC Research Press
• Subjects: Acer; Acer platanoides; Acer rubrum; Acer saccharum; Anoplophora glabripennis; Asian long-horned beetle; Biological and medical sciences; Environmental aspects; Forest ecology; forest pests; Forestry; Forests; Fundamental and applied biological sciences. Psychology; hardwood forests; Insects; Invasive species; landscapes; Natural environment; Neighborhoods; parks; Pests; Plant growth; quarantine; tree growth; trees; Urban environments; Urban forestry; Urban forests; Wetlands; Massachusetts; Canada; United States > US; Worcester Massachusetts; Natural environment; Urban environment; Coleoptera; Arthropoda; Insecta; Forestry; Hardwood forest tree; Invertebrata; Pest organism; Broadleaved forests; Invasion; Northeast
• ISSN: 0045-5067; 1208-6037
• DOI: 10.1139/x11-097

An infestation of Asian longhorned beetle (ALB) (Anoplophora glabripennis (Motschulsky)) was detected in Worcester, Massachusetts, in 2008. The discovery of this pest, previously only seen in urban environments of North America, led to the unprecedented establishment of a 243 km2 quarantine zone that included urban parks, neighborhoods, and natural forests. Because ALB behavior in forested stands is virtually unknown, two closed-canopied forested stands (Bovenzi and Delaval) infested with ALB within this zone were sampled during 2008-2010 to document stand conditions, assess ALB host selection, and determine ALB impact on tree growth. Thirty-two percent of the Acer sampled in Bovenzi were infested with ALB compared with 63% in Delaval. In Delaval where three maple host species were available, ALB was found more often in Acer rubrum L. than in Acer saccharum Marsh. or Acer platanoides L. Radial growth patterns did not differ between ALB-infested and uninfested Acer trees in Bovenzi. In contrast, ALB-infested trees in Delaval were significantly older and larger than uninfested trees and exhibited slower radial growth and ring width index patterns compared with uninfested trees. Results suggest that if left uncontrolled, ALB can readily disperse into natural forest landscapes and alter the makeup of North America’s hardwood forest region.