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Fourth detection of Bactrocera invadens in South Africa

Publication Date
Wed, 27 Jul 2011, 00:00
Last Updated
Oct. 3, 2011, 9:01 a.m.
Report Number
South Africa
Pest Id
Bactrocera invadens - (BCTRIN)
Report Status
Citrus spp are under immediate threat but other commodities that are exported and considered hosts of this pest and produced or present in this area in South Africa include man, guava, tomato, pepper (Capsicum spp) and several wild African fruits
Pest Status (old values from ISPM 8 -1998 )
  • Transient: actionable, under surveillance
Pest Status (ISPM 8 - 2021)
  • Present: transient
Geographical Distribution
Two Bactrocera invadens specimens were detected in two Methyl Eugenol baited fruit fly traps in the Weipe area in the Limpopo province of South Africa close to the Zimbabwe border. Delimitation was carried out and the affected area has been placed u

On 25 May 2011 one exotic fruit fly specimen was detected in a Methyl Eugenol baited fruit fly trap in the Weipe area in the Limpopo province, close to the Zimbabwe border. Subsequently, the NPPO of South Africa initiated a delimiting survey in accordance with the South African Bactrocera invadens Action Plan. On 15 June 2011, another specimen was collected in a separate Methyl Eugenol baited trap, within 3 km from the first detection site.

The fruit fly specimens were identified as Bactrocera invadens by the nominated local fruit fly expert and reported to Directorate Plant Health, Department of Agriculture, Forestry and Fisheries in accordance with the relevant legislation and national Action Plan. Subsequently this identification has been confirmed by an internationally recognised fruit fly taxonomist.

A risk assessment was conducted and phytosanitary actions were implemented on 6 July 2011 to control the movement of fruit from the area under delimitation. Eradication was initiated on 7 July 2011. It includes the application of weekly protein bait sprays and the deployment of male annihilation blocks in the quarantine area.

Potential spread or establishment of Bactrocera invadens into other production areas where its presence may impede the export potential of the relevant host commodities affected.
Report files

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