Root knot nematode found again in Switzerland

In Switzerland, the root knot nematode Meloidogyne enterolobii (EPPO A2 List) was first found in 2008 (EPPO RS 2008/105) in two commercial greenhouses used for vegetable production (tomato and cucumber) in the cantons of Aargau and Luzern in Northern Switzerland. At the time, it was not a quarantine pest in Switzerland. The NPPO noted that it had been found again in 2018 in the same sites and eradicated. M. enterolobii was listed as a quarantine pest in 2019, and the sites where infestations occurred in the past were sampled in 2022 to check the presence of the pest.

In November 2022, M. enterolobii was found in the same locations as in 2008 and 2018 in the cantons of Aargau and Luzern. Official measures are taken inside the demarcated area and include strict hygiene measures to stop the spread of the pest.

The pest status of Meloidogyne enterolobii in Switzerland is officially declared as: Present, only in some parts of the country, under containment, in case eradication is impossible.

Source: NPPO of Switzerland (2022-11, 2022-12) via EPPO

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