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

  • Native budworm (Helicoverpa punctigera) is a major pest of pulse and canola crops in the south west of Western Australia.

  • The stickfast flea, first recorded in Western Australia (WA) at Geraldton in 1913, is now a common disease in backyard poultry flocks, especially during summer.

  • Four species of aphids on citrus are recorded in Australia but only two occur in Western Australia, the brown/black citrus aphid Toxoptera citricidus (Kirkaldy) and spiraea aphid, Aphi

  • Citrus leafminer, Phyllocnistis citrella Stainton, is the only leafminer attacking citrus in Australia.

  • Citrophilus mealybug (Pseudococcus calceolariae) is an exotic pest to Western Australia.

  • In Western Australia's Mediterranean-type climate, the survival of pests and diseases over summer is often critical in determining pest outbreaks and disease epidemics in broadacre crops.

  • Black scale (Saissetia oleae) is a major pest of Australian olives, reducing tree vigour, yield and the quality of fruit and oil.

  • Green peach aphid feeding damage to flowering canola did not cause yield loss

    Canola seed oil content also was not correlated to population density of green peach aphids

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

  • Whiteflies or snow flies (Aleyrodidae) are tiny, sap-sucking insects often found on the underside of leaves.

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