Home/News/Insights/Growers Column/Fruit Fly Rural Update (July 2022)

Winter weather

Weather conditions in the Goulburn Murray Valley point to the probability that Queensland fruit fly will survive the winter in greater numbers than in previous colder, drier years. It is important to make sure all fruit and fruiting vegetables are harvested and used or picked up and destroyed.

Hot spot overview

Temperatures have fallen throughout winter but there are still a number of locations where significant fruit fly populations are persisting. It is possible these areas have high populations and it is likely these sites have pockets that are warmer than other areas. In these cases, fruit fly move from fruiting plants to shelter plants where they can safely survive winter away from the cold and predators. Several locations in the Goulburn Murray Valley are currently providing refuge for fruit fly. Hot spot areas to look out for include:

Town area Risk category
Kyabram VERY HIGH
Ardmona HIGH
Bunbatha HIGH
Grahamvale HIGH
Merrigum HIGH
Mooroopna VERY HIGH
Orrvale VERY HIGH
Shepparton HIGH
Shepparton East VERY HIGH
Tatura VERY HIGH
Toolamba VERY HIGH
Undera HIGH
Invergordon VERY HIGH
Katunga HIGH
Nagambie HIGH

Stop the spread

If your property is close to (within 500m) of hot spot areas mentioned above, untended fruit fly host plants or feral hosts along roads, channels or in abandoned orchards you should keep a close watch on:

  • Fruit fly traps – male and female targeting. Traps are most useful when deployed in and around susceptible orchards all year round.

Check your traps at least once a week

  • Ripe or ripening fruit that show signs of infestation such as sting marks, abnormal fruit softening.

Check fruit for sting marks, eggs and larvae inside them at least once a week.