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Septoria spot on external orange fruit surface showing characteristic small spots

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.

Septoria spot on external orange fruit surface showing characteristic small spots. Photo © NSW Department of Primary Industries.

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.

Symptoms of Citrus black spot on oranges

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.

Pink disease on citrus stem. The white and pink material shown is the fungus which has produced an encrusted growth on the stem.

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.

Erythricium salmonicolor growth on citrus stem showing the white-pink-grey coloured hyphal mass

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.

Fruit symptoms of dry rot. Photo courtesy of Dr Roger Shivas, DPIF 2005.

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.

Fruit symptoms of dry rot. Photo courtesy of Dr Roger Shivas, DPIF 2005.

Dry rot of citrus: pest data sheet

29 May 2014

Dry rot (Eremothecium coryli) is an exotic pest to Western Australia.

Plant with purple stems and dark green leaves covered with a bright yellow powder-like fungus.

Myrtle rust: Biosecurity alert

8 April 2014

Myrtle rust is a serious disease that infects and kills many plants belonging to the Myrtaceae family including eucalypts, bottlebrushes, paperbarks and peppermint trees.

Null

Onion smut: declared pest

20 December 2019

Onion smut (Urocystis cepulae) is a disease of onions. This disease is absent from Western Australia.

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