Pest categorisation of Malacosoma disstria

Abstract The European Commission requested the EFSA Panel on Plant Health to conduct a pest categorisation of Malacosoma disstria Hübner (Lepidoptera: Lasiocampidae), commonly known as the forest tent caterpillar, for the territory of the EU. M. disstria is a North American polyphagous leaf‐eating p...

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Main Authors: EFSA Panel on Plant Health (PLH), Claude Bragard, Paula Baptista, Elisavet Chatzivassiliou, Francesco Di Serio, Paolo Gonthier, Josep Anton Jaques Miret, Annemarie Fejer Justesen, Christer Sven Magnusson, Panagiotis Milonas, Juan A Navas‐Cortes, Stephen Parnell, Roel Potting, Philippe Lucien Reignault, Emilio Stefani, Hans‐Hermann Thulke, Wopke Van der Werf, Antonio Vicent Civera, Jonathan Yuen, Lucia Zappalà, Jean‐Claude Grégoire, Chris Malumphy, Virag Kertesz, Andrea Maiorano, Alan MacLeod
Format: Article
Language:English
Published: Wiley 2022-03-01
Series:EFSA Journal
Subjects:
Online Access:https://doi.org/10.2903/j.efsa.2022.7208
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author EFSA Panel on Plant Health (PLH)
Claude Bragard
Paula Baptista
Elisavet Chatzivassiliou
Francesco Di Serio
Paolo Gonthier
Josep Anton Jaques Miret
Annemarie Fejer Justesen
Christer Sven Magnusson
Panagiotis Milonas
Juan A Navas‐Cortes
Stephen Parnell
Roel Potting
Philippe Lucien Reignault
Emilio Stefani
Hans‐Hermann Thulke
Wopke Van der Werf
Antonio Vicent Civera
Jonathan Yuen
Lucia Zappalà
Jean‐Claude Grégoire
Chris Malumphy
Virag Kertesz
Andrea Maiorano
Alan MacLeod
author_facet EFSA Panel on Plant Health (PLH)
Claude Bragard
Paula Baptista
Elisavet Chatzivassiliou
Francesco Di Serio
Paolo Gonthier
Josep Anton Jaques Miret
Annemarie Fejer Justesen
Christer Sven Magnusson
Panagiotis Milonas
Juan A Navas‐Cortes
Stephen Parnell
Roel Potting
Philippe Lucien Reignault
Emilio Stefani
Hans‐Hermann Thulke
Wopke Van der Werf
Antonio Vicent Civera
Jonathan Yuen
Lucia Zappalà
Jean‐Claude Grégoire
Chris Malumphy
Virag Kertesz
Andrea Maiorano
Alan MacLeod
author_sort EFSA Panel on Plant Health (PLH)
collection DOAJ
description Abstract The European Commission requested the EFSA Panel on Plant Health to conduct a pest categorisation of Malacosoma disstria Hübner (Lepidoptera: Lasiocampidae), commonly known as the forest tent caterpillar, for the territory of the EU. M. disstria is a North American polyphagous leaf‐eating pest primarily feeding on deciduous trees belonging to the genera Acer, Malus, Populus, Prunus, Quercus and Tilia. It is a univoltine species. Eggs are laid on twigs and branches. Larvae emerge in the spring to feed on buds and fresh leaves. Host plants can be completely defoliated although they often refoliate and recover within a few weeks. Nevertheless, three consecutive years of heavy defoliation or repeated periods of defoliation combined with drought can cause extensive tree mortality. As such, M. disstria is regarded as one of the most serious hardwood forestry insect pests in North America. Population upsurges leading to outbreaks are cyclical, generally nine to 13 years apart and can last 2–3 years. Outbreaks have been reported in eastern North America since the late 18th century. Outbreaks in western Canada have spanned up to 200,000 km2. Plants for planting, cut branches and isolated bark provide pathways for entry. Host availability and climate suitability suggest that large parts of the EU would be suitable for establishment. The pest could spread naturally by flight within the EU. Eggs on plants for planting could also facilitate spread. The introduction of M. disstria into the EU could lead to serious outbreaks causing significant damage to forest, orchard and amenity trees and shrubs. Phytosanitary measures are available to inhibit the entry and spread of this species. M. disstria satisfies the criteria that are within the remit of EFSA to assess for it to be regarded as a potential Union quarantine pest.
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spelling doaj.art-942a5a272204468da834dd6ce492544e2023-03-14T04:16:02ZengWileyEFSA Journal1831-47322022-03-01203n/an/a10.2903/j.efsa.2022.7208Pest categorisation of Malacosoma disstriaEFSA Panel on Plant Health (PLH)Claude BragardPaula BaptistaElisavet ChatzivassiliouFrancesco Di SerioPaolo GonthierJosep Anton Jaques MiretAnnemarie Fejer JustesenChrister Sven MagnussonPanagiotis MilonasJuan A Navas‐CortesStephen ParnellRoel PottingPhilippe Lucien ReignaultEmilio StefaniHans‐Hermann ThulkeWopke Van der WerfAntonio Vicent CiveraJonathan YuenLucia ZappalàJean‐Claude GrégoireChris MalumphyVirag KerteszAndrea MaioranoAlan MacLeodAbstract The European Commission requested the EFSA Panel on Plant Health to conduct a pest categorisation of Malacosoma disstria Hübner (Lepidoptera: Lasiocampidae), commonly known as the forest tent caterpillar, for the territory of the EU. M. disstria is a North American polyphagous leaf‐eating pest primarily feeding on deciduous trees belonging to the genera Acer, Malus, Populus, Prunus, Quercus and Tilia. It is a univoltine species. Eggs are laid on twigs and branches. Larvae emerge in the spring to feed on buds and fresh leaves. Host plants can be completely defoliated although they often refoliate and recover within a few weeks. Nevertheless, three consecutive years of heavy defoliation or repeated periods of defoliation combined with drought can cause extensive tree mortality. As such, M. disstria is regarded as one of the most serious hardwood forestry insect pests in North America. Population upsurges leading to outbreaks are cyclical, generally nine to 13 years apart and can last 2–3 years. Outbreaks have been reported in eastern North America since the late 18th century. Outbreaks in western Canada have spanned up to 200,000 km2. Plants for planting, cut branches and isolated bark provide pathways for entry. Host availability and climate suitability suggest that large parts of the EU would be suitable for establishment. The pest could spread naturally by flight within the EU. Eggs on plants for planting could also facilitate spread. The introduction of M. disstria into the EU could lead to serious outbreaks causing significant damage to forest, orchard and amenity trees and shrubs. Phytosanitary measures are available to inhibit the entry and spread of this species. M. disstria satisfies the criteria that are within the remit of EFSA to assess for it to be regarded as a potential Union quarantine pest.https://doi.org/10.2903/j.efsa.2022.7208forest tent caterpillarpest riskplant healthplant pestquarantine
spellingShingle EFSA Panel on Plant Health (PLH)
Claude Bragard
Paula Baptista
Elisavet Chatzivassiliou
Francesco Di Serio
Paolo Gonthier
Josep Anton Jaques Miret
Annemarie Fejer Justesen
Christer Sven Magnusson
Panagiotis Milonas
Juan A Navas‐Cortes
Stephen Parnell
Roel Potting
Philippe Lucien Reignault
Emilio Stefani
Hans‐Hermann Thulke
Wopke Van der Werf
Antonio Vicent Civera
Jonathan Yuen
Lucia Zappalà
Jean‐Claude Grégoire
Chris Malumphy
Virag Kertesz
Andrea Maiorano
Alan MacLeod
Pest categorisation of Malacosoma disstria
EFSA Journal
forest tent caterpillar
pest risk
plant health
plant pest
quarantine
title Pest categorisation of Malacosoma disstria
title_full Pest categorisation of Malacosoma disstria
title_fullStr Pest categorisation of Malacosoma disstria
title_full_unstemmed Pest categorisation of Malacosoma disstria
title_short Pest categorisation of Malacosoma disstria
title_sort pest categorisation of malacosoma disstria
topic forest tent caterpillar
pest risk
plant health
plant pest
quarantine
url https://doi.org/10.2903/j.efsa.2022.7208
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