Occurrence of Gnathotrichus materiarius (Fitch, 1858) (Coleoptera, Curculionidae, Scolytinae) in South-Western Poland

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Sciendo (De Gruyter)
Gnathotrichus materiarius is listed as an alien ambrosia beetle in European fauna. This is an invasive species from North America, which was found in Europe (France) in the 1930s. In Poland, it was recorded in 2015. Already in 2017 numerous infestations of G. materiarius on lying Pinus sylvestris wood were obsereved. G. materairius is a xylomycophagous species and wood damage to its feeding is similar to that caused by striped ambrosia beetle Trypodendron lineatum. The paper presents sites of G. materairius occurrence found in 2016 and 2017. These include 15 sites located in managed forests (5 forest districts) as well as in 2 national parks situated along south-western border of Poland. G. materairius beetles were found in pheromone-baited traps used to monitor Ips duplicatus and I. amitinusor collected from infested Scots pine wood. The paper presents the description and characteristics of wood damage due to G. materiarius as well as its distinguishing features.
Acknowledgements: Scanning photos of beetle antennae were prepared by Magdalena Gawlak in the Research Centre for Quarantine, Invasive and Genetically Modified Organisms at the Institute of Plant Protection – National Research Institute in Poznań, Poland We would like to thank the Forestry Officers from the Forest Districts Ruszów, Węgliniec and Pieńsk for help during field inspections, as well as all persons who inspected pheromone-baited traps against spruce bark beetles mounted in the Forest Districts studied. © 2018 Andrzej Mazur, et al., published by Sciendo. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License - https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode . The Version of Scholarly Record of this Article is published in Folia Forestalia Polonica, Series A – Forestry, 2018, Vol. 60 (3), 154–160, available online at https://sciendo.com/article/10.2478/ffp-2018-0015 . Keywords: distribution; Europe; Poland; ambrosia beetles; technical damage to wood; Gnathotrichus materiarius; insect pest.
Mazur, A., Witkowski, R., Góral, J. & Rogowski, G. (2018). Occurrence of Gnathotrichus Materiarius (Fitch, 1858) (Coleoptera, Curculionidae, Scolytinae) in South-Western Poland. Folia Forestalia Polonica, 60(3) 154-160. https://doi.org/10.2478/ffp-2018-0015