Gnomoniopsis associated with necrosis of leaves and chestnut galls induced by Dryocosmus kuriphilus

Magro, P.; Speranza, Stefano; Stacchiotti, M.; Martignoni, D.; Paparatti, B.

doi:10.1111/j.1365-3059.2010.02336.x

Cited by 28 publications

(33 citation statements)

References 2 publications

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“…3 reports a comparison of the morphological characteristics of these isolates of Gnomoniopsis sp. with those of fungi associated with the same symptoms reported by other authors (Spegazzini 1879, Voglino & Bongini 1917, Ridé & Gudin 1960, Magro et al 2010, Visentin et al 2012, Shuttleworth et al 2012). …”

Section: Fungal Isolation and Identificationsupporting

confidence: 73%

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Brown rot on nuts of Castanea sativa Mill: an emerging disease and its causal agent

Maresi¹,

Longa²,

Turchetti³

2013

iForest

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The quality and quantity of nut production are fundamental to the economic viability of chestnut cultivation, yet recent reports indicate that severe damage due to moulds represents a significant problem for growers. We carried out an investigation of the agents of chestnut rot and internal fruit damage in three orchards in Italy. Black and brown rot, as well as insect damage, were found in all the areas examined. Brown rot appeared to be the main cause of damage, affecting 8% to 49% and 2% to 24% of nuts collected from the ground and from burrs, respectively. With respect to morphology and DNA sequencing analyses, fungal isolates obtained from brown rot were homologous with Gnomoniopsis sp. obtained from Dryocosmus kuriphilus (Yasumatsu) galls and with Gnomoniopsis castanea and Gnomoniopsis smithogilvyi described on chestnut in Italy and Australia, respectively. The same fungus was also isolated from the bark of one- and two-years-old healthy shoots at each site, supporting the endophytic behaviour of this rot agent. Brown rot symptoms on nuts associated with Gnomoniopsis sp. corresponded with those previously described by several authors and referred to as Phoma or Phomopsis endogena, suggesting a relationship between these fungi and Gnomoniopsis sp. It is to notice that the escalation of brown rot damage in Italy followed several periods of drought and probably the recent invasion of D. kuriphilus, both stress factors for chestnut trees

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Section: Fungal Isolation and Identificationsupporting

confidence: 73%

“…Gnomoniopsis sp. has been found to be associated with necrosis of D. kuriphilus galls (Magro et al 2010), raising interest in its use as a biocontrol agent against this hymenopteran (Vannini et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Brown rot on nuts of Castanea sativa Mill: an emerging disease and its causal agent

Maresi¹,

Longa²,

Turchetti³

2013

iForest

View full text Add to dashboard Cite

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“…are documented as endophytes and are associated with rotten chestnuts in Italy, being in some cases, the most abundant fungus in the old galls (Gentile et al 2009;Magro et al 2010;Vettraino et al 2011;Visentin et al 2012;Vannini et al 2012Vannini et al , 2017Ugolini et al 2014;Lione et al 2016). This fungus was also found in New Zealand (Sogonov et al 2008) in chestnut blight cankers in India (Dar and Rai 2013).…”

Section: Discussionmentioning

confidence: 93%

“…In addition, in Italy, several studies have been developed in recent years to find endophytes that could be used as biological control agents, such as Gnomoniopsis Stoneman (Magro et al 2010;Vanini et al 2012Vanini et al , 2016Vinale et al 2014;Seddaiu et al 2017), Colletotrichum Corda, (Graziosi and Rieske 2015;Gaffuri et al 2015) or species of Fusarium Link such as F. proliferatum (Matsush.) Nirenberg, F. incarnatum-equiseti complex, F. oxysporum Schltdl.…”

Section: Introductionmentioning

confidence: 99%

Fungi associated with necrotic galls of Dryocosmus kuriphilus (Hymenoptera: Cynipidae) in northern Spain

Fernández¹,

García²,

Casero³

2018

Silva Fenn.

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Highlights• Presence of Dryocosmus kuriphilus in Northern Spain.• The mycobiota associated to necrotic galls was studied for the first time.• 7 fungal species were identified.• The entomopathogenic fungi found could be use as potential biological control agents.• Gnomomiopsis smithogilvyi, Fusarium oxysporum and F. avenaceum known by their toxicity against the insect, were found. AbstractThe Asian chestnut gall wasp (ACGW), Dryocosmus kuriphilus Yasumatsu (Hymenoptera: Cynipidae) is one of the most important pests in Castanea species worldwide. In 2012, it was found for the first time in Catalonia (Spain) and a year later, in the north of Spain (Cantabria). Today, it is present in 14 Spanish provinces. In search of biological control against the ACGW, several authors have previously found the relationship between the presence of some Fusarium Link species in necrotic galls and wasp mortality due to the production of different types of wall-degrading enzymes and entomopathogenic mycotoxins. The objective of this study was to investigate the mycobiota associated with necrotic galls to find interesting perspectives for biological control of the ACGW. For this purpose, in 2014, 119 necrotic galls of Castanea sativa Miller were plated to isolate and identify the associated fungi. The fungal isolates were identified by the morphology of the fruiting bodies and DNA analyses. From necrotic galls, 7 species of fungi were identified. Of these, we highlight three species of Fusarium Link as well as the presence of Gnomoniopsis smithogilvyi Shuttlew, Liew & Guest due to its toxic capacity. Further studies are required to verify the effectiveness of these fungal species as biocontrol agents against the ACGW.

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“…İtalya'nın Viterbo kentinde Gnomoniopsis (Gnomoniaceae) cinsinden bir fungus türünün gallere bulaşarak kestane gal arısı larvalarının ölümüne neden olduğu gözlemlenmiştir (Magro et al, 2010). Ancak yapılan çalışmalarda bu fungusun kestane yapraklarına bulaşarak zarar oluşturduğu da görülmüştür (Visentin et al, 2012).…”

Section: Diğer Doğal Düşmanlarunclassified

Kestane Gal Arısı Dryocosmus kuriphilus Yasumatsu (Hymenoptera: Cynipidae): geçmişten günümüze dünyada ve Türkiye’deki son durumu ve mücadelesi

İpekdal¹,

Coşkuncu²,

Aytar³

et al. 2015

Türk. entomol. bült.

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The most important insect pest of chestnut, chestnut gall wasp, Dryocosmus kuriphilus Yasumatsu (Hymenoptera: Cynipidae) was detected in April 2014 in Yalova and Bursa Regions in Turkey. The invasion probably started at least six years ago and it is expected to reach all the Turkish chestnut forests in a very near future. Its management is a hard task. Chemical insecticides are mostly unsuccessful and not preferred. Some cultural measures could be taken in private orchards. The most successful method so far has been producing and releasing the parasitoid Torymus sinensis Kamijo (Hymenoptera: Torymidae). After the pest's first record in Turkey, a laboratory for rearing T. sinensis has been built in Yalova by the Turkish General Directorate of Forestry Department of Forest Pest Management and it is going to be activated soon. Chestnut gall wasp has an important component of its community as being in interaction mainly with oak gall wasps and their parasitoids. 11 parasitoid species has already been found in chestnut gall wasp galls in Turkey. This system will get even more complicated and interesting for community ecology studies with addition of T. sinensis. As a general principle, structuring a successful pest management study depends on understanding potential impacts of the control measures at the ecosystem and community level. Chestnut gall wasp system is not an exception to this principle. This review summarizes the relevant literature and puts forth a road map for future pest management and research activities in Turkey.

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Gnomoniopsis associated with necrosis of leaves and chestnut galls induced by Dryocosmus kuriphilus

Cited by 28 publications

References 2 publications

Brown rot on nuts of Castanea sativa Mill: an emerging disease and its causal agent

Brown rot on nuts of Castanea sativa Mill: an emerging disease and its causal agent

Fungi associated with necrotic galls of <i>Dryocosmus kuriphilus</i> (Hymenoptera: Cynipidae) in northern Spain

Kestane Gal Arısı Dryocosmus kuriphilus Yasumatsu (Hymenoptera: Cynipidae): geçmişten günümüze dünyada ve Türkiye’deki son durumu ve mücadelesi

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