Introduction of Mandshurian ash (Fraxinus mandshurica Rupr.) to Estonia: Is it related to the current epidemic on European ash (F. excelsior L.)?

Drenkhan, Rein; Sander, Heldur; Hanso, M.

doi:10.1007/s10342-014-0811-9

Cited by 42 publications

(46 citation statements)

References 34 publications

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“…In Europe the disease was first reported in Poland in the early 1990s and Eastern Poland and/ or the South Baltic has been suggested as epicenter for the disease (Drenkhan et al 2014;McKinney et al 2014). Current evidence indicates that H. fraxineus originates from Asia, where it is associated with local Fraxinus species, Fraxinus mandshurica and F. chinensis (Cleary et al 2016;Gross et al 2014a;Zhao et al 2013;Zheng and Zhuang 2014).…”

Section: Ash Dieback In Europementioning

confidence: 99%

The susceptibility of Asian, European and North American Fraxinus species to the ash dieback pathogen Hymenoscyphus fraxineus reflects their phylogenetic history

et al. 2016

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Section: Ash Dieback In Europementioning

confidence: 99%

The susceptibility of Asian, European and North American Fraxinus species to the ash dieback pathogen Hymenoscyphus fraxineus reflects their phylogenetic history

et al. 2016

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“…It is caused by Hymenoscyphus fraxineus (T. Kowalski) Baral, Queloz & Hosoya (syn. H. pseudoalbidus Queloz et al, anamorph: Chalara fraxinea T. Kowalski), a fungus that is probably native to East Asia [1,2]. The disease was first noticed in the early 1990s in Poland and since then has spread over vast parts of the continent [3,4].…”

Section: Introductionmentioning

confidence: 99%

Ash Dieback on Sample Points of the National Forest Inventory in South-Western Germany

Enderle

Metzler

Riemer³

et al. 2018

Forests

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Abstract:The alien invasive pathogen Hymenoscyphus fraxineus causes large-scale decline of European ash (Fraxinus excelsior). We assessed ash dieback in Germany and identified factors that were associated with this disease. Our assessment was based on a 2015 sampling of national forest inventory plots that represent a supra-regional area. In the time from 2012 to 2015, the number of regrown ash trees corresponded to only 42% of the number of trees that had been harvested or died. Severe defoliation was recorded for almost 40% of the living trees in 2015, and more than half of the crowns mainly consisted of epicormic shoots. Necroses were present in 24% of root collars. A total of 14% of the trees were in sound condition, which sum up to only 7% of the timber volume. On average, trees of a higher social status or with a larger diameter at breast height were healthier. Collar necroses were less prevalent at sites with a higher inclination of terrain, but there was no evidence for an influence of climatic variables on collar necroses. The disease was less severe at sites with smaller proportions of the basal area of ash compared to the total basal area of all trees and in the north-eastern part of the area of investigation. The regeneration of ash decreased drastically.

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“…It is doubtful, if to consider the long history of introduction of F. mandshurica to Estonia without any direct coincidences of the fungus or the disease symptoms on the highly susceptible European ash (F. excelsior L.) over more than a century (Drenkhan et al 2014a). It seems also of doubt that the fungus could accompany its host already at the last phases of the phylogeny and biogeographic history of ashes, i.e.…”

Section: Resultsmentioning

confidence: 99%

“…H. pseudoalbidus Queloz et al) to Europe from its natural range in East Asia, Drenkhan et al (2014a) considered, as one of the possible routes, the arrival of the fungus alongside the "Krüssmann's ash belt" (original term), i.e. an arc-shaped narrow in the middle belt, formed by the natural ranges of ca.…”

mentioning

confidence: 99%

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Fraxinus sogdiana, a Central Asian ash species, is susceptible to Hymenoscyphus fraxineus

Drenkhan¹,

Adamson²,

Hanso³

2015

Plant Prot. Sci.

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Drenkhan R., Adamson K., Hanso M. (2015): Fraxinus sogdiana, a Central Asian ash species, is susceptible to Hymenoscyphus fraxineus. Plant Protect. Sci., 51: 150-152.Susceptibility of new host trees is an essential prerequisite for the alien pathogens. Today, an acute problem in Europe is ash dieback, caused by Hymenoscyphus fraxineus. Among the possible invasion routes of this fungus to Europe from its natural range in easternmost Asia, an arrival alongside the unbroken, passing the whole Eurasia chain of ranges of ash species should not be ignored, at least not before the determination of the western extent of the natural range of the pathogen. We established that in Estonia the ash species Fraxinus sogdiana, growing naturally in the "bottleneck" of that belt, in Central Asia, is susceptible to H. fraxineus. It is the first record of H. fraxineus on a Central Asian ash species.

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Introduction of Mandshurian ash (Fraxinus mandshurica Rupr.) to Estonia: Is it related to the current epidemic on European ash (F. excelsior L.)?

Cited by 42 publications

References 34 publications

The susceptibility of Asian, European and North American Fraxinus species to the ash dieback pathogen Hymenoscyphus fraxineus reflects their phylogenetic history

The susceptibility of Asian, European and North American Fraxinus species to the ash dieback pathogen Hymenoscyphus fraxineus reflects their phylogenetic history

Ash Dieback on Sample Points of the National Forest Inventory in South-Western Germany

Fraxinus sogdiana, a Central Asian ash species, is susceptible to Hymenoscyphus fraxineus

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