The Riverland region is grappling with 56 ongoing outbreaks of Queensland Fruit Fly, posing a significant threat to local horticultural crops and vineyards. The Department of Primary Industries and Regions (PIRSA) is actively working to eradicate these pests and protect South Australia’s valuable produce.
Due to the persistent presence of fruit flies, the quarantine end date for the Riverland fruit fly affected area has been extended to 2 November 2025.
The metropolitan Adelaide outbreaks in Salisbury North and Glynde have both had their end dates extended to 5 November 2025. If additional flies are detected, these dates will be further extended.
PIRSA is treating the Salisbury North and Glynde outbreak areas separately to potentially release one area earlier if conditions improve.
New Mediterranean Fruit Fly Outbreak in Ceduna
A recent outbreak of Mediterranean Fruit Fly was declared in Ceduna on 6 March 2025. This outbreak is more than 330 km from the nearest vineyard registered with Vinehealth Australia, so there is no vineyard owner action required. Vigilant monitoring is underway to prevent the spread of Mediterranean Fruit Fly to the Qfly affected Riverland and Metro Adelaide regions.
Take preventive measures
In light of these challenges, we recommend growers drop unharvested grapes to the ground and crush them by driving over them to prevent fruit flies from finding a host. We understand that this request comes at a difficult time for many growers who are already facing low grape prices and difficulties in selling their produce.
PIRSA and Vinehealth Australia remain committed to supporting growers and eradicating fruit fly outbreaks to safeguard South Australia’s horticultural industry.