The Department of Primary Industries and Regional Development continues to support the growth and international competitiveness of all crop industries in Western Australia.

With a 2400 kilometre span from its tropical north to its temperate south, WA supports a broad range of cropping industries from rain-fed winter cereals through to irrigated horticultural crops.

In the 2012/13 year the WA cropping industries exported a total of $3.9 billion which comprised: $3.1 billion of cereals, $859 million of pulses, pastures and oilseeds, $142 million of horticultural crops. The major contributors to these exports were wheat ($2.7 billion), canola ($756 million), barley ($377 million), lupins ($42 million), carrots at $48 million, oats ($12 million), and strawberries at $5.5 million.


  • Light brown pustule on upper leaf surface that darken with age

    A fungal leaf disease specific to barley that can spread rapidly within and between crops causing yield losses of up to 45% in susceptible varieties.


  • Florets are replaced with a mass of dark brown-black powdery spores that blow away.

    A fungal disease affecting seed heads, which can cause yield losses and delivery penalties.


  • Dark brown spots that elongate and produce dark brown net-type streaks

    Net-type net blotch is a stubble-borne fungal foliar disease occurring more frequently in the medium and high rainfall areas of the WA wheatbelt. It can reduce grain yield and quality.

  • Roots stunted, short and stubby with few laterals.

    A widespread fungal root disease that attacks seedlings but which rarely causes large yield losses.


  • Yellow stripes that turn brown and eventually die.

    A very rare fungal disease that is most often found in irrigated barley.


  • Bleached often diamond shaped lesions with dark brown edge

    A stubble and seed-borne fungal foliar disease occurring more frequently in high rainfall cooler areas that can cause grain yield losses up to 45% and reduce grain quality.

  • Powdery mildew is a disease which is becoming more prevalent in Western Australian strawberry crops as increasing areas are being grown under high (Haygrove) tunnels.

  • Strawberries are affected by a number of pathogens causing crown and/or root rots.  These diseases are becoming more prevalent for several reasons including the withdrawal of methyl bromide as a so

  • Phytophthora root rot is the most common soil-borne disease causing plant death in native cutflower production.

  • 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.

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