Fruit fly outbreaks

From time to time, isolated fruit flies are detected in the South Australian trapping grid. These individual detections do not constitute a fruit fly outbreak which is only triggered if a threshold number of fruit flies are detected or if fruit fly larvae are found in locally grown fruit.

If an outbreak is declared, early detection means the flies can be eradicated quickly.

Many outbreaks of fruit fly have been detected by home owners as well as our 3,283 trapping sites in metropolitan Adelaide, the Northern Adelaide Plains, the Adelaide Hills, the Riverland and country towns.

The quarantine restrictions have been lifted in the Colonel Light Gardens, Highgate, and Clarence Park areas because of the successful eradication of Mediterranean fruit fly.

Colonel Light Gardens outbreak

Go to the Colonel Light Gardens outbreak information.

Highgate outbreak

Go to the Highgate outbreak information.

Clarence Park outbreak

Go to the Clarence Park outbreak information.

About outbreaks

A Queensland fruit fly (Q-fly) outbreak is declared when any of the following occurs:

  • 5 male or non-pregnant female flies are trapped within 1 km within a rolling 2 week period
  • 1 pregnant female is detected
  • 1 or more larva(e) are detected in locally grown fruit.

A Mediterranean fruit fly (Med-fly) outbreak is declared when any of the following occurs:

  • 3 male or non-pregnant female flies are trapped within 1 km within a rolling 2 week period
  • 1 pregnant female is detected
  • 1 or more larva(e) are detected in locally grown fruit.

In the event of an outbreak we:

  • define an eradication (quarantine) area of 1.5 km radius from which host fruit cannot be removed
  • ensure no fruit, other than preserved or cooked is removed from properties in the area
  • establish a suspension zone of up to 15km within which host fruit is treated prior to removal
  • destroy all fruit on infested trees in the  eradication area
  • undertake bait spotting and sterile fruit fly techniques
  • continue to apply bait spotting once or twice a week for at least two weeks.

Outbreak information for growers

Contacts

Biosecurity SA Fruit Fly Program
Email: PIRSA.planthealth@sa.gov.au
Phone 24 hours: (08) 8207 7820

Fruit Fly Hotline: 1300 666 010

Page Last Reviewed: 24 Jan 2017
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