On 21 May 2010 one possible exotic fruit fly specimen was detected in a Methyl Eugenol baited fruit fly trap in the area of the Groblersbrug border post adjacent to the Botswana border. Subsequently, on 15 July 2010, one exotic fruit fly specimen was also detected in another Methyl Eugenol baited fruit fly trap near Groblersbrug. 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.
The NPPO of South Africa initiated a delimiting survey on 02 August 2010. A risk assessment was conducted and phytosanitary actions were implemented with immediate effect to prevent the movement of fruit from the area under delimitation. Further delimitation towards the east, south and west of the point of detection is instated.
Eradication will commence in the current area and pending the final results of the delimiting survey Delimitation towards the west cannot extend further northwards due to the restriction of the national border between South Africa and Botswana. Bilateral communications with the NPPO of Botswana in this regard are underway.