Situation of Meloidogyne chitwoodi and Meloidogyne fallax in Switzerland
During routine surveys carried out in Switzerland, the presence of Meloidogyne chitwoodi (EPPO A2 List) was detected for the first time in 2002. The nematode was found in 1 sample collected from a glasshouse in Valais canton. Surveys conducted from 2002 to 2006 showed that other production sites were infected by Meloidogyne fallax (EPPO A2 List). However, both species were limited to a small number of production sites in the region of Saillon (Valais). Eradication and containment measures were taken and as a result, only M. fallax was detected in 2007/2008. Intensive studies conducted in 2009/2010, confirmed the absence of M. chitwoodi but showed that M. fallax was still occurring in a small number of glasshouses and heated plastic tunnels in Valais canton.
The situation of Meloidogyne chitwoodi in Switzerland can be described as follows: Absent, detected once in 2002 but subsequently eradicated.
The situation of Meloidogyne fallax in Switzerland can be described as follows: Present, detected in a small number of production sites (glasshouses and heated plastic tunnels) near Saillon (Valais), under eradication.
Sources
Eder R, Roth I, Terrettaz C, Kiewnick S (2010) Les nématodes de quarantaine dans les cultures maraîchères en Suisse. Recherche Agronomique Suisse 1(9), 340-345.