QFF Update FOR COMMERCIAL HORTICULTURE – always seek agronomy advice!
If you haven’t already, now is the time to install traps, apply bait and improve production area hygiene.
TRAPS
- Refresh or replace fruit fly monitoring traps (have some male QFF traps in high risk areas like dams/creeks and home gardens, and aim to have all production areas with in 250m of a trap)
- Install some protein (food) based fruit fly traps in key areas
- Check traps at least weekly or more often if possible
BAIT**
- Apply protein bait as soon as traps indicate QFF in the area, or earlier if a high risk crop (months earlier)!!
- Mix fruit fly bait with water (mix well to avoid clogging jets) and add approved insecticide (or use the premixed organic brand)
- Use a focused stream (jet nozzle) and apply whilst moving, to apply droplets of bait onto leaves of trees etc – for crops with fruit or ground crops focus on the perimeter and other foliage trees (*1-1.5m high)
- This can be done using a tank mounted on a tractor/bike/ute/trailer or even a using a knapsack – the idea is to keep moving and spread the droplets as broadly as possible
- Remember the house garden and fence lines, sheds and fruit disposal areas
- Re apply weekly or more often if in a high risk area
- Re apply after rainfall (it washes off the leaf)
- Continue for a minimum of four weeks, unless more fruit fly pressure evolves (where the practice will need to continue until the pressure reduces to 0)
- Bait is very effective as the hungry flies seek it out, and does not target good bugs
- Bait is most effective if everyone in your area is also baiting
PRODUCTION AREA HYGIENE
- Pick all fruit before it falls to the ground (the larvae will pupate in the ground)
- Destroy all fruit in the ground (mulcher (most destructive), slasher if low enough (some impact), tractor tyres(some impact)
- Bury infested fruit in a deep hole (with at least 500mm compacted cover)
- Consider fruit waste removal options to reduce QFF risk
- Investigate non commercial host fruit trees/plants and consider removal
COVER SPRAYS**
- Commercial production needs to evaluate if crops are at risk from QFF and investigate the use of cover sprays
- When applying cover sprays, careful consideration of biological predators for other IPM is required
- When applying cover sprays, careful consideration is needed with respect to WHPs, MRLs, and target market requirements
**All chemical use needs to be in accordance with the label and APVMA permits and registrations
Join VCA: complete the Membership application form
and return it to: VCA Secretary, PO Box 612, Mooroopna, 3629
Web design by Fruit Tree Media