First record of the ambrosia beetle Anisandrus maiche in Switzerland
The NPPO of Switzerland recently informed the Secretariat of the first finding of Anisandrus maiche (Coleoptera: Scolytinae, regulated by the EU as ‘non-European Scolytinae’) on its territory. In the context of a study on ambrosia beetles, 27 individuals of A. maiche were found in traps in two locations of South-East Switzerland (canton of Ticino) at the end of June 2022. Additional traps are being set up in the canton of Ticino in order to estimate the size of the infestation. No symptoms or damages have been observed on trees.
A. maiche is a species native to Asia. It was also recently trapped in Italy (EPPO RS 2022/147).
The pest status of Anisandrus maiche in Switzerland is officially declared as: Present, only in some parts of the country.
Sources
NPPO of Switzerland (2022-07).