First detection of Eremothecium coryli, a plant pathogenic yeast transmitted by Halyomorpha halys, in the Czech Republic

Tomáš Tonka, František Lorenc, Jana Ouředníčková and Oldřich Pultar
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Tomáš Tonka: Department of Plant Production, Faculty of Agriculture and Technology, University of South Bohemia in České Budějovice, České Budějovice, Czech Republic
František Lorenc: Department of Plant Production, Faculty of Agriculture and Technology, University of South Bohemia in České Budějovice, České Budějovice, Czech Republic
Jana Ouředníčková: Research and Breeding Institute of Pomology Holovousy Ltd., Holovousy, Czech Republic
Oldřich Pultar: Research and Breeding Institute of Pomology Holovousy Ltd., Holovousy, Czech Republic

Plant Protection Science, vol. preprint

Abstract: We report the first detection of the plant pathogenic yeast Eremothecium coryli in the Czech Republic and identify the invasive brown marmorated stink bug, Halyomorpha halys, as a vector. E. coryli causes yeast spot diseases in crops such as soybeans, hazelnuts, and tomatoes, primarily in tropical and subtropical regions. The yeast was identified in the foregut of H. halys specimens collected in a cherry orchard near the hazelnut shrubs using PCR amplification and sequencing of the ITS and LSU gene regions. Phylogenetic analysis confirmed the identity of E. coryli and its association with H. halys, as discussed.

Keywords: ascomycetous yeast; stigmatomycosis; brown marmorated stink bug; yeast spot disease; invasive species; molecular detection; pathogen identification (search for similar items in EconPapers)
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpps:v:preprint:id:64-2025-pps

DOI: 10.17221/64/2025-PPS

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