Prociphilus fraxinifolii (Riley) - woolly ash aphid

 

revision

Date de publication

jeu, 30 Jui 2022, 15:00

Dernière mise à jour effectuée le

juin 30, 2022, 3 après-midi

Report Number

GBR-27/2

Pays

United Kingdom

Identité de l'organisme nuisible

Prociphilus fraxinifolii - (PROCFX)

Situation du signalement

Final

Hôtes

Fraxinus pennsylvanica

Distribution géographique

Found on one street tree in Herefordshire

Résumé

The woolly ash aphid, P. fraxinifolii (Riley), is native to North America where it is common and widely distributed in the USA, in Canada (British Columbia and Manitoba) and Mexico. It has been introduced to Chile (1977), South Africa (1958), Hungary (2003), Bulgaria (2007) and Serbia (2007). It lives all year round on American Fraxinus species including F. pennsylvanica, but it is not known to feed on F. excelsior, European ash. Heavy infestations cause premature defoliation and stunt growth. It has been reported to have a mutualistic association with the ash-tree bolete fungus Boletinellus merulioides in which the aphid gains protection while it is feeding on the roots and the fungus gains nutrients from the honeydew. In 2011, P. fraxinifolii was detected on a semi-mature F. pennsylvanica on a street tree in Herefordshire in the west of England. The identification was confirmed by the Natural History Museum, London. No statutory action is being taken to eradicate the pest. The status of P. fraxinifolii in the UK can be described as: Present, found in one location.

Danger

None

Fichiers de rapports

Site web

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