Why is the invasive brown spruce longhorn beetle (Tetropium fuscum) spreading so slowly in North America?

2016 ◽  
Author(s):  
Stephen B. Heard
2010 ◽  
Vol 142 (3) ◽  
pp. 256-260 ◽  
Author(s):  
Matthew A. Lemay ◽  
Peter J. Silk ◽  
Jon Sweeney

AbstractWe describe the calling posture of the brown spruce longhorn beetle, Tetropium fuscum (F.), and demonstrate, using solid-phase micro-extraction and gas chromatography – mass spectrometry, that this posture is positively correlated with the release of fuscumol, a male-produced long-range pheromone. The posture is observed only in males and is characterized by an extension of the legs that raises the body entirely off the substrate at an angle of approximately 10°, with the posterior end higher than the head. Characterization of the calling posture is a useful diagnostic tool for future research on the reproductive biology of T. fuscum, since a simple visual assessment can be used instead of chemical analysis to determine when males are emitting fuscumol. In addition, we demonstrate that the presence of conspecific males stimulates calling behaviour in T. fuscum. This study contributes much-needed data on the biology and mating behavior of this invasive wood-boring species.


Author(s):  
Lucian Hănceanu ◽  
Maria-Magdalena Dascălu ◽  
Alexandru-Mihai Pintilioaie

Neoclytus acuminatus is an alien longhorn beetle native to North America and currently established in Europe where it has a relatively wide distribution. Herein, its distribution in Romania is summarized based on new data accumulated since its first record fifteen years ago. Some aspects on its biology and morphology are discussed.


2011 ◽  
Vol 104 (6) ◽  
pp. 1928-1933 ◽  
Author(s):  
Marc Rhainds ◽  
Wayne E. Mackinnon ◽  
Kevin B. Porter ◽  
Jon D. Sweeney ◽  
Peter J. Silk

Insects ◽  
2021 ◽  
Vol 12 (10) ◽  
pp. 877
Author(s):  
Matteo Marchioro ◽  
Massimo Faccoli

The Asian Longhorn Beetle (ALB), Anoplophora glabripennis (Coleoptera: Cerambycidae), is an important and extremely polyphagous wood-boring beetle native to Asia. In the 1990s, ALB was accidentally introduced into North America and Europe. In 2009, a large ALB infestation was found in the Veneto Region (north-eastern Italy), in the municipality of Cornuda (Treviso province). Eradication actions were immediately undertaken, based on delimitation of infested and buffer zones, tree visual inspections, felling and chipping of infested trees, trapping protocols, and citizen alerts. A total of 36,361 trees, belonging to 16 genera, were surveyed twice a year over an area of 7594 hectares. In 2020, after 11 years of eradication measures, the ALB population of Cornuda was declared eradicated. Overall, 2361 trees belonging to 8 genera were felled and destroyed, of which 1157 were found to be infested by ALB. This paper describes all the actions carried out and the procedures applied in order to eradicate ALB from north-eastern Italy, providing a useful example for current and future ALB eradication programs.


2004 ◽  
Vol 80 (2) ◽  
pp. 224-228 ◽  
Author(s):  
Lisa Mushrow ◽  
Andrew Morrison ◽  
Jon Sweeney ◽  
Dan Quiring

The brown spruce longhorn beetle (BSLB), Tetropium fuscum (Fabr.), is native to Europe but has recently been discovered in Halifax, Nova Scotia, where efforts are underway to eradicate it. If attempts to eradicate this beetle are unsuccessful, phytosanitary measures will have to be developed to ensure continued access to markets. We carried out studies to determine the lethal temperatures for different BSLB life stages in spruce. The beetles were exposed to different temperatures for various time periods in lumber of low and high moisture content. Adults died after 30 and 15 minutes exposure to 40 and 45°C, respectively, and pupae died after 30 minutes exposure to 45°C. Larvae required exposure to 50°C for 30 minutes (or 55°C for 15 minutes) to ensure 100% mortality. Larval survival was slightly higher in wood with low moisture content. The study was repeated a second year for the 50°C/30-minute and 55°C/15-minute treatments for larvae and the 45°C/30-minute for pupae at very low moisture (12-15% oven-dry basis) content, with similar results. Our results demonstrate that heat treatment is an effective phytosanitary method to ensure that wood does not contain any live BSLB.Current phytosanitary guidelines listed by the Canadian Food Inspection Agency in its directive "Canadian Heat-treated Wood Products Certification Program (CHTWPCP) for Export" (56ºC, 30 minutes) are more than adequate to ensure BSLB-free wood. Key words: brown spruce longhorn beetle, heat treatment, hygrothermal stress, Tetropium fuscum, wood borers


2003 ◽  
Vol 81 (4) ◽  
pp. 316-329 ◽  
Author(s):  
Karin Jacobs ◽  
Keith A Seifert ◽  
Ken J Harrison ◽  
Thomas Kirisits

In 1999, red spruce (Picea rubens Sarg.) trees in a small area of the Halifax Regional Municipality in Nova Scotia, Atlantic Canada, were found to be infested and killed by Tetropium fuscum (Fabr.) (Coleoptera: Cerambycidae), a Eurasian species of longhorn beetle. We isolated and identified the fungi associated with T. fuscum in Halifax and compared them with ophiostomatoid fungi associated with Tetropium spp. on spruce in Europe. Ophiostoma species associated with Tetropium cinnamopterum Kirby (indigenous to and transcontinental in Canada) were also compared with those associated with T. fuscum. Strains were identified based on morphological and molecular characters. Ophiostoma piceae (Münch) Syd. & P. Syd., Pesotum fragrans Mathiesen-Käärik, and Ophiostoma tetropii Mathiesen were the most frequently isolated species. Lack of type material for O. tetropii and discrepancies between the ex-type strain of O. tetropii and its original description prompted us to lectotypify this species and designate epitype material for it. The results suggest that O. tetropii was introduced with T. fuscum from Europe into Atlantic Canada.Key words: Ophiostoma tetropii, Tetropium fuscum, molecular phylogeny, invasive species.


Author(s):  
David B. McCorquodale ◽  
Soren Bondrup-Nielsen

The long-horned beetles (Coleoptera: Cerambycidae) are taxonomically relatively well known in North America and can potentially serve as an important forest biomonitoring tool. For such a tool to work accurate distributional data are required. We compared the status of cerambycids for Nova Scotia based on specimens in collections with two recent compilations that include distributional information, one for Canada and one for northeastern North America. We found major discrepancies. The two compilations reported a total of 55 species, while 87 species were in the collections examined. An accurate and up to date inventory is essential. This is underscored by the recent concern for the “invasion” of the Brown Spruce Long-horn Beetle, Tetropium fuscum, in Nova Scotia that was first collected more than 10 years ago, but misidentified. Both regional and national collections need to be supported to ensure effective strategies for conservation and forest management.En Amérique du Nord, les longicornes (Coléoptères : Cérambycidés) sont assez bien connus sur le plan taxinomique et pourraient constituer un outil important dans la surveillance biologique des forêts. Pour qu’un tel outil soit efficace, il faut disposer de données précises sur la répartition des insectes. Nous avons comparé la situation des Cérambycidés de la Nouvelle-Écosse, établie à partir de spécimens de collections, à deux compilations récentes qui comprennent des données relatives à la répartition, à savoir une pour le Canada (Bousquet, 1991) et une pour le nord-est de l’Amérique du Nord (Dowie et Arnett, 1996). Nous avons découvert des différences notables. Les deux compilations font état d’un total de 55 espèces, tandis que 85 espèces ont été recensées dans les collections examinées. Il est essentiel d’effectuer un inventaire précis et à jour. Cette nécessité est soulignée par le problème récent de l’« envahissement » du longicorne brun de l’épinette (Tetropium fuscum) en Nouvelle-Écosse, qui avait été récolté pour la première fois il y a plus de 10 ans, mais mal identifié. Il faut soutenir les collections régionales et nationales pour assurer le succès des stratégies de conservation et d’aménagement des forêts.


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