Biosecurity Spot the difference

Spot the difference

MEDITERRANEAN FRUIT FLY VS QUEENSLAND FRUIT FLY

There are two main species of fruit flies threatening Australia's $13 billion horticultural industry: the Queensland fruit fly (Bactrocera tryoni) and the Mediterranean fruit fly (Ceratitis capitata).

Queensland fruit fly (Qfly) occurs in the Northern Territory, Queensland, New South Wales and Victoria and is endemic to Australia. Mediterranean fruit fly (Medfly) is an introduced pest and is only present in Western Australia, mostly in the south-west of the state.

However, growers must remain vigilant for any incursions of Medfly from west to east, or Qfly from east to west. Report anything unusual in your backyard or on your farm by calling the Exotic Plant Pest Hotline on 1800 084 881.

Breaking the life cycle of Qfly or Medfly

- Both Qfly and Medfly can lay hundreds of eggs during their lifespan.

- Multiple generations can occur in a year, when temperature and humidity conditions are ideal.

- The female of both pierces (stings) maturing fruit and lays eggs just below the surface.

- Eggs hatch after two to three days and the creamy-white larvae (maggots) start developing. - When fully grown, larvae stop feeding and jump out from produce, burrowing into the ground and changing into brown, barrel-shaped pupae.

- Adult Qfly and Medfly will develop inside the pupae and emerge from the ground, ready to breed.

- Infested fruit or vegetables that fall to the ground allow the life cycle to continue. v

Sources: National Fruit Fly Council; Plant Health Australia; Department of Agriculture, Fisheries and Forestry

QFLY

DISTRIBUTION OF FRUIT FLY IN AUSTRALIA

- Distinct yellow markings on the sideas and back - Larvae (maggots) are creamy white and about 5-10mm long - Adults are up to 8mm long - Elongated redish brown body - Transparent wings

MEDFLY

- Adults are 3-5mm long - Light brown body with numerous black areas in a characteristic pattern. - Mottled transparent wings with distinctive brown bands - Larvae (maggots) are creamy white and about 7-8mm long