Eradication of Angular leaf spot in a strawberry germplasm collection

Date de publication

ven, 30 Nov 2012, 00:00

Dernière mise à jour effectuée le

juin 30, 2015, 6:25 matin

Report Number

AUS-54/3

Pays

Australia

Identité de l'organisme nuisible

Xanthomonas fragariae - (XANTFR)

Situation du signalement

Final

Hôtes

Fragaria (×) ananassa

Pest Status (old values from ISPM 8 -1998 )

• Absent: pest eradicated

Pest Status (ISPM 8 - 2021)

• Absent: pest eradicated

Distribution géographique

Strawberry germplasm at Bundaberg, Queensland

Résumé

Leaves exhibited discrete, angular light-green lesions on the upper surface, while the lesions appeared coalesced and water-soaked on the underside. Phase microscopy of sections through lesions revealed profuse oozing, indicative of bacterial infection. The origin of the incursion has not been established.

Danger

An incursion of Xanthomonas fragariae was detected in a strawberry germplasm collection in May 2010 in Bundaberg, Queensland. Diagnosis was achieved by traditional bacteriological methods of isolation and characterisation, as well as molecular characterisation of cultures and ooze suspensions. Following the identification, all of the potentially affected strawberry germplasm was destroyed and all equipment thoroughly decontaminated. Continuing surveillance and trace forward operations have not revealed any new infections. Further surveys undertaken during the 2011 strawberry growing season on the two closest commercial properties based on proximity to the detection at 1.5km and 5.2kms. The first property was surveyed in August 2011 and the second in September 2011. The property were the pest was originally detected was surveyed on 02 September 2011. There were no detections of Angular Leaf Spot of Strawberries. Eradication was declared on 22 September 2011.

Contact pour demandes d'information

Australian Chief Plant Protection Officer Australian Government Department of Agriculture, GPO Box 858 Canberra ACT 2601 Australia [email protected]

Fichiers de rapports

Site web

http://wiki.pestinfo.org/wiki/Australasian_Plant_Pathology_(2011)_40,_286-292

Mots-clés associés au thème

Pest status:Absent/Absence

Mots-clés associés à la marchandise