Pest insects

Pest insects can have adverse and damaging impacts on agricultural production and market access, the natural environment, and our lifestyle. Pest insects may cause problems by damaging crops and food production, parasitising livestock, or being a nuisance and health hazard to humans.

Western Australia is free from some of the world's major pest insects. Biosecurity measures on your property are vital in preventing the spread of insects.

The Department of Primary Industries and Regional Development provides:

  • biosecurity/quarantine measures at the WA border to prevent the entry of pest insects
  • where relevant post border biosecurity measures
  • advice on widespread pest insects present in the state.

For advice on pest insects search our website, the Western Australian Organism List or contact our Pest and Disease Information Service (PaDIS).

For diagnostic services, please contact our Diagnostic Laboratory Services.

Articles

  • Queensland fruit fly is not present in Western Australia, but is occasionally detected and requires an eradication response to contain and prevent further spread.

  • Two mealybug species, the longtailed mealybug (Pseudococcus longispinus), and obscure mealybug (Pseudococcus viburni) occur in grapevines and deciduous fruit tree crops in Western

  • Carpophilus, also known as driedfruit beetles, are a worldwide pest of fruits, both pre- and post-harvest, and grains.

  • Queensland fruit fly (Qfly, Bactrocera tryoni) is native to Australia.

  • Citrus gall wasp is a pest of citrus trees grown in backyards and orchards. Citrus tree owners are encouraged to implement control measures on their property to reduce the threat to the citrus indu

  • Codling moth (Cydia pomonella) is a serious pest of apples and other pome fruit and has the potential to cause severe crop losses. This pest is not known to occur in Western Australia.

  • The Pome and Summer Fruit Orchard Spray Guide 2014-15 provides information on chemical products, both registered and those as minor use permits, to control insect, mite and mollusc pests, diseases

  • African black beetle (Heteronychus arator), is native to southern Africa. It has been present in Western Australia since the 1930s and occurs in the wetter coastal regions.

  • Apple looper (Phrissogonus laticostata) is a native insect that damages fruit in apple orchards and vineyards in the South West of Western Australia.

  • Apple dimpling bug (Campylomma liebknechti) adults feed on developing fruitlets of apples, pears, nashi pears and occasionally summerfruit (stone fruit) resulting in distortion that makes

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