Notification on the detection of Bactrocera dorsalis (Oriental Fruit Fly) in several District Municipalities, in the Northern Cape Province of South Africa

Publication Date
Fri, 17 Jul 2020, 18:37
Last Updated
July 22, 2020, 11:23 a.m.
Report Number
ZAF-54/2
Country
South Africa
Pest Id
Bactrocera dorsalis - (DACUDO)
Report Status
Final
Hosts
Citrus spp., Grape (including Table-, Wine-, and Dry grape varieties) and Pomegranate fruits, produced or present in this area in South Africa are under threat.
Pest Status
  • Transient: actionable, under eradication
Geographical Distribution
Several male, Bactrocera dorsalis specimens, were detected between February and June 2020, in Methyl Eugenol-baited traps alongside the Orange river in the Northern Cape Province. The detections were from Douglas approximately 300 km East of Upington as well as in Groblershoop, Karos, Upington, Kakamas and Augrabies, alongside or close to the Orange River, in the Northern Cape Province of South Africa. Other male detections occurred in Jan Kempdorp, which is approximately 400km from North-West of Upington.
Summary

Several male, Bactrocera dorsalis specimens, were detected in Methyl Eugenol-baited traps from Douglas to Kakamas, alongside or close to the Orange River, in the Northern Cape Province of South Africa. The first Bactrocera dorsalis specimens were detected in Douglas on 14 March 2020, in Groblershoop on 14 February 2020, in Wilgenhoutsdrif on 23 March 2020, Karos and Upington on 23 March 2020, in Kakamas on 03 March 2020, in Keimoes on 04 March 2020 as well as Augrabies on 18 March 2020. Other detection occurred in Jan-Kempdorp for the first time on 26 February 2020 and 13 March 2020, as well as in Kuruman on 13 February 2020 and 18 March 2020. Citrus, table grapes and pomegranates are produced in the Kakamas and Augrabies areas.

The identifications of all the specimens were confirmed by an expert in Entomology through molecular analysis (PCR).

Phytosanitary actions were implemented to control the movement of fruit from the area under delimitation. Eradication actions were implemented and include the application of protein bait sprays, deployment of male annihilation (MAT) blocks and strict field sanitation within the quarantine area. Eradication actions will be deployed for a minimum period of eight weeks or over two life cycles of the OFF if it is longer than 8 weeks. After implementation of eradication actions, a monitoring period of four weeks or one life cycle will be conducted. If there are no further detection during the monitoring period, the quarantine areas can be declared as free from the presence of Bactrocera dorsalis. The status of the pest in the lower Orange River area is: Transient, actionable and under eradication to prevent establishment.

Danger
Potential spread or establishment of B. dorsalis into other production areas where its presence may impede the export potential of the relevant host commodities affected.
Contact for info
IPPC Official Contact Point Mr. Kgabo Matlala Manager: International Plant Health Standards South African Department of Agriculture, Land Reform and Rural Development Private Bag x 14, Gezina 0031, Pretoria, South Africa Phone: +27 12 319 6091 Mobile: +27 72 198 4978 Fax: +27 12 319 6101/6193 Email: [email protected] Alternate Email: [email protected] Preferred languages: English
Report files
Notification on the detection of Bactrocera dorsalis (Oriental Fruit Fly) in Addo area, Eastern Cape Province of South Africa
Issue keywords
Commodity keywords

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