Abstract
Asian longhorned beetle (ALB), Anoplophora glabripennis (Motschulsky), is an invasive insect that has successfully established multiple times in North America. To investigate host colonization and reproductive success (exit holes/eggs), two ALB infested forest stands were sampled in central Massachusetts, USA. Infested Acer platanoides L., Acer rubrum L., and Acer saccharum Marsh. were felled, bucked into 1 m sections and dissected to determine indications of ALB infestations, such as presence of life stages or signs of damage on trees. ALB damage was also aged on a subset of trees to determine the earliest attacks on the three Acer species. In one stand, ALB oviposition was significantly higher on the native A. rubrum and A. saccharum than the exotic A. platanoides. In the second stand, ALB oviposition was significantly higher and cumulative reproductive success was higher on A. rubrum than A. platanoides or A. saccharum. An A. saccharum had the earliest signs of attack that occurred in 2006. Acer rubrum (2007) and A. platanoides (2010) were colonized shortly thereafter. Overall, ALB was more successful in A. rubrum, where adults emerged from 53% and 64% of trees in each stand, compared to A. platanoides (11% and 18%) or A. saccharum (14% and 9%).
Highlights
The Asian longhorned beetle (ALB), Anoplophora glabripennis (Motschulsky) (Coleoptera: Cerambycidae), has successfully invaded urban forests in North America and Europe [1]
The infestation in Worcester, Massachusetts is the largest detected in North America far, and as of December 2013 has resulted in a 285 km2 quarantine zone and over 33,000 trees removed during the ongoing eradication effort
The Ohio and Massachusetts infestations are both adjacent to large areas of forests with abundant ALB host tree species, making these established populations worrisome as they could provide a source for dispersal into forests of the region if not contained
Summary
The Asian longhorned beetle (ALB), Anoplophora glabripennis (Motschulsky) (Coleoptera: Cerambycidae), has successfully invaded urban forests in North America and Europe [1]. ALB has become established in several cities and townships, including New York, New York; Chicago, Illinois; Jersey City and Carteret, New Jersey; Toronto, Ontario; Worcester and Boston, Massachusetts and Bethel, Ohio [2,3]. The infestation in Worcester, Massachusetts is the largest detected in North America far, and as of December 2013 has resulted in a 285 km quarantine zone and over 33,000 trees removed during the ongoing eradication effort. The Ohio and Massachusetts infestations are both adjacent to large areas of forests with abundant ALB host tree species, making these established populations worrisome as they could provide a source for dispersal into forests of the region if not contained. ALB populations in Illinois and New Jersey have been successfully eradicated, while efforts to eliminate the beetle from other areas are ongoing
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