Could Pine Wood Nematode (<i>Bursaphelenchus xylophilus</i>) Cause Pine Wilt Disease or Even Establish inside Healthy Trees in Finland Now—Or Ever?

Pine wilt disease (PWD) caused by the pine wood nematode (PWN, <i>Bursaphelenchus xylophilus</i>) can, in suitable conditions, lead to mass mortality of susceptible trees. In the European Union, PWN is a quarantine pest. To support PWN risk management in Finland, we assessed the suitabil...

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Main Authors: Juha Tuomola, Hannah Gruffudd, Kimmo Ruosteenoja, Salla Hannunen
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Series:Forests
Subjects:
Online Access:https://www.mdpi.com/1999-4907/12/12/1679
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author Juha Tuomola
Hannah Gruffudd
Kimmo Ruosteenoja
Salla Hannunen
author_facet Juha Tuomola
Hannah Gruffudd
Kimmo Ruosteenoja
Salla Hannunen
author_sort Juha Tuomola
collection DOAJ
description Pine wilt disease (PWD) caused by the pine wood nematode (PWN, <i>Bursaphelenchus xylophilus</i>) can, in suitable conditions, lead to mass mortality of susceptible trees. In the European Union, PWN is a quarantine pest. To support PWN risk management in Finland, we assessed the suitability of the Finnish present and future climate for both PWD and PWN establishment inside susceptible healthy trees. The former was done using the mean summer temperature concept and the latter by relating annual growing degree days to the likelihoods of PWN extinction and establishment inside healthy trees. The likelihoods were derived from the previously published modelling of PWN population dynamics for 139 locations in Germany. Both assessments were conducted using 10 × 10 km resolution climate data from 2000–2019 and Finland-specific climate change projections for 2030–2080. The results indicate that the present Finnish climate is too cool for both PWD and PWN establishment inside healthy trees. Furthermore, even global warming does not appear to turn the Finnish climate suitable for PWD or PWN establishment inside healthy trees by 2080, except under the worst-case representative concentration pathway scenario (RCP8.5). Consequently, giving top priority to PWN when allocating resources for biosecurity activities in Finland might deserve reconsideration.
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spelling doaj.art-32ea276f43d449c4b1f5fee93fdeddfc2023-11-23T08:20:53ZengMDPI AGForests1999-49072021-12-011212167910.3390/f12121679Could Pine Wood Nematode (<i>Bursaphelenchus xylophilus</i>) Cause Pine Wilt Disease or Even Establish inside Healthy Trees in Finland Now—Or Ever?Juha Tuomola0Hannah Gruffudd1Kimmo Ruosteenoja2Salla Hannunen3Finnish Food Authority, Mustialankatu 3, FI-00790 Helsinki, FinlandForest Research Agency, Environment Centre Wales, Ffordd Deiniol, Bangor LL57 2UW, UKWeather and Climate Change Impact Research, Finnish Meteorological Institute, P.O. Box 503, FI-00101 Helsinki, FinlandFinnish Food Authority, Mustialankatu 3, FI-00790 Helsinki, FinlandPine wilt disease (PWD) caused by the pine wood nematode (PWN, <i>Bursaphelenchus xylophilus</i>) can, in suitable conditions, lead to mass mortality of susceptible trees. In the European Union, PWN is a quarantine pest. To support PWN risk management in Finland, we assessed the suitability of the Finnish present and future climate for both PWD and PWN establishment inside susceptible healthy trees. The former was done using the mean summer temperature concept and the latter by relating annual growing degree days to the likelihoods of PWN extinction and establishment inside healthy trees. The likelihoods were derived from the previously published modelling of PWN population dynamics for 139 locations in Germany. Both assessments were conducted using 10 × 10 km resolution climate data from 2000–2019 and Finland-specific climate change projections for 2030–2080. The results indicate that the present Finnish climate is too cool for both PWD and PWN establishment inside healthy trees. Furthermore, even global warming does not appear to turn the Finnish climate suitable for PWD or PWN establishment inside healthy trees by 2080, except under the worst-case representative concentration pathway scenario (RCP8.5). Consequently, giving top priority to PWN when allocating resources for biosecurity activities in Finland might deserve reconsideration.https://www.mdpi.com/1999-4907/12/12/1679pine wood nematodepine wilt diseaseinvasive speciesforest pestquarantine pestrisk assessment
spellingShingle Juha Tuomola
Hannah Gruffudd
Kimmo Ruosteenoja
Salla Hannunen
Could Pine Wood Nematode (<i>Bursaphelenchus xylophilus</i>) Cause Pine Wilt Disease or Even Establish inside Healthy Trees in Finland Now—Or Ever?
Forests
pine wood nematode
pine wilt disease
invasive species
forest pest
quarantine pest
risk assessment
title Could Pine Wood Nematode (<i>Bursaphelenchus xylophilus</i>) Cause Pine Wilt Disease or Even Establish inside Healthy Trees in Finland Now—Or Ever?
title_full Could Pine Wood Nematode (<i>Bursaphelenchus xylophilus</i>) Cause Pine Wilt Disease or Even Establish inside Healthy Trees in Finland Now—Or Ever?
title_fullStr Could Pine Wood Nematode (<i>Bursaphelenchus xylophilus</i>) Cause Pine Wilt Disease or Even Establish inside Healthy Trees in Finland Now—Or Ever?
title_full_unstemmed Could Pine Wood Nematode (<i>Bursaphelenchus xylophilus</i>) Cause Pine Wilt Disease or Even Establish inside Healthy Trees in Finland Now—Or Ever?
title_short Could Pine Wood Nematode (<i>Bursaphelenchus xylophilus</i>) Cause Pine Wilt Disease or Even Establish inside Healthy Trees in Finland Now—Or Ever?
title_sort could pine wood nematode i bursaphelenchus xylophilus i cause pine wilt disease or even establish inside healthy trees in finland now or ever
topic pine wood nematode
pine wilt disease
invasive species
forest pest
quarantine pest
risk assessment
url https://www.mdpi.com/1999-4907/12/12/1679
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