First finding of Contarinia sp. in Alstroemeria flower buds in a production greenhouse

Date de publication

mar, 07 Fév 2017, 12:48

Dernière mise à jour effectuée le

fév. 7, 2017, 12:48 après-midi

Report Number

NLD-57/1

Pays

Netherlands, Kingdom of the

Identité de l'organisme nuisible

Contarinia pseudotsugae - (CONTPS)

Situation du signalement

Final

Hôtes

Pseudotsuga menziesii

Pest Status (old values from ISPM 8 -1998 )

• Present: only in some areas

Pest Status (ISPM 8 - 2021)

• Present: not widely distributed and under official control

Résumé

Contarinia pseudotsugae (Douglas-fir needle midge) has been detected in two provinces (Limburg and Noord-Brabant) and Contarinia cuniculator has been detected in five provinces (Utrecht, Overijssel, Limburg, Noord-Brabant and Gelderland). The first suspicion of C. cf pseudotsugae was reported in December 2015 in three provinces. Based on gall and larval characteristics the presence of two Contarinia species is now suspected, instead of one. Findings were triggered by the yearly national specific survey of forest stands inter alia for the fungi Mycophaerella and Gibberella and Pine Wood Nematode. The origin of the finding is unknown. Before the finding in the Netherlands, this midge was only known to occur in North America.

Fichiers de rapports

Suspicion of Contarinia pseudotsugae and Contarinia cuniculator in forest trees of Pseudotsuga menziesii in five provinces.

Site web

https://english.nvwa.nl/topics/pest-reporting/contents/pest-reportsb

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