Diseases

Diseases have a detrimental effect on plants and animals and impact on market access and agricultural production. Diseases include micro-organisms, disease agents (bacteria, fungi and viruses), infectious agents, parasites and genetic disorders.

Western Australia is free from some of the world's major agricultural and livestock diseases. Biosecurity measures on your property are vital in preventing the spread of diseases.

The Department of Primary Industries and Regional Development provides:

biosecurity/quarantine measures at the WA border to prevent the entry of plant and animal diseases
post border biosecurity measures for harmful animal and plant diseases
advice on widespread diseases present in the state.

For advice on animal and plant diseases 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

Citrus pests, diseases and disorders

8 November 2013

Western Australia has a low prevalence of citrus pests and diseases compared to most other countries.
Citrus canker Western Australia

30 April 2018

The Department of Primary Industries and Regional Development has taken action to protect Western Australia’s citrus growers from the threat of citrus canker following confirmation that the disease
Dry rot of citrus: pest data sheet

29 May 2014

Dry rot (Eremothecium coryli) is an exotic pest to Western Australia.
Dry rot of citrus: declared pest

29 May 2014

Dry rot (Eremothecium coryli) is a serious pest of citrus that can affect fruit palatability and citrus rootstock seed production. This pest is not known to occur in Western Australia.
Pink disease of citrus: pest data sheet

1 May 2014

Pink disease (Erythricium salmonicolor) is an exotic pest to Western Australia. It is a serious disease of citrus than can result in yield losses due to limb and tree death.
Pink disease of citrus: declared pest

1 May 2014

Pink disease (Erythricium salmonicolor) is a serious pest of citrus that can affect entire limbs and/or kill trees. This pest is not known to occur in Western Australia.
Citrus black spot: pest data sheet

4 April 2014

Citrus black spot is caused by the fungus Guignardia citricarpa. It is not known to occur in Western Australia, but is found in other parts of Australia.
Citrus black spot: declared pest

2 April 2014

Citrus black spot (Guignardia citricarpa) is a fungal disease of citrus trees that can affect external fruit quality. This disease is not known to occur in Western Australia.
Septoria spot of citrus: pest data sheet

25 February 2014

Septoria spot of citrus (Septoria citri) is an exotic disease to Western Australia. It is a serious pest that causes fruit blemishes, affecting saleability for the fresh fruit market.
Septoria spot of citrus: declared pest

28 November 2013

Septoria spot (Septoria citri) is a serious pest of citrus that can affect external fruit quality. This pest is not known to occur in Western Australia.