Abstract
Psyllids are small, phloem-feeding insects. Several species are vectors of economically important pathogens, such as ‘Candidatus Liberibacter solanacearum’ (CLso) and phytoplasmas. We monitored the psyllid population in Quedlinburg, Germany, using a 12.2-m suction trap from May to September 2017 in order to detect potential vectors for CLso, a pathogen of apiaceous and solanaceous crops. CLso has been previously detected in Germany in the carrot psyllid, Trioza apicalis. Psyllids were identified using a combination of morphological and molecular methods, and samples of each species were tested for CLso. No known vectors of CLso were captured. However, we detected CLso of unknown haplotype in a single individual of Trioza urticae, which mainly feeds on Urtica spp. A so-called haplotype U was recently described in Finland and was associated with Trioza urticae and Urtica dioica. This is the first report of CLso in T. urticae in Germany.
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Acknowledgements
This work has been financially supported by European Union Horizon 2020 research and innovation programme under grant agreement No. 635646: POnTE (Pest Organisms Threatening Europe). We thank Kerstin Welzel for processing suction trap collections.
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Sjolund, M.J., Arnsdorf, Y.M., Carnegie, M. et al. ‘Candidatus Liberibacter solanacearum’ detected in Trioza urticae using suction trap-based monitoring of psyllids in Germany. J Plant Dis Prot 126, 89–92 (2019). https://doi.org/10.1007/s41348-018-0187-z
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DOI: https://doi.org/10.1007/s41348-018-0187-z