Nematodes are microscopic unsegmented roundworms that are one of the most numerous life forms on earth. While many species are free-living and play an important part in organic matter recycling, other species are parasitic to either plants or animals. Plant parasitic nematodes live in plant roots and other plant parts, causing disease.

The Department of Agriculture and Food, Western Australia is researching the effective and sustainable management of plant parasitic nematodes and provides information on resistance and tolerance of crop species and cultivars. This enables crop sequences to be designed which minimise the build-up and impact of major plant parasitic nematode species in Western Australian farming systems.


  • 14 October 2016

    Telone® (1,3 dichloropropene) and Telone C35® (1,3 dichloropropene+chloropicrin) have been effective in controlling nematodes in field trials in Western Australia and should b

  • Affected plants are stunted with few tillers.
    10 July 2015

    A soil-borne pest affecting roots of cereal crops, cereal cyst nematode (CCN) can cause substantial yield losses, particularly in continuous cereal crops.


  • Roots can assume a noodle-like root thickening appearance. Affected primary roots are thin and poorly branched with fewer and shorter laterals with brown discolouration
    6 September 2016

    Soil-borne pests infecting roots and reducing yield of cereals. Can only be properly diagnosed via a pathology test.

  • Leaves wrinkled, twisted and rolled.
    17 April 2015

    Very rare due to modern seed cleaning practices seed gall nematode seldom causes economic losses.


  • 1 September 2016

    Nematodes can feed on root tissues of a wide range of plant species and lead to root damage which can result in significant crop yield loss.

  • 1 August 2016

    Diseases that occur underground can be difficult to detect and diagnose but they must be identified correctly to enable appropriate control measures to be implemented.

  • 7 November 2016

    Information is provided here to assist management of diseases and viruses that occur in broadacre crops grown in Western Australia - cereals (wheat, barley, oats and triticale), pulses (field pea,

  • 11 December 2014

    Nematodes are common soil pests that affect plants.

  • 19 October 2016

    The beet cyst nematode is a pest that can cause significant yield loss to brassicas and some other vegetable crops.

  • 9 August 2016

    Root-knot nematodes are plant-parasitic round worms with a broad host range which includes many important horticultural crops, pastures and some weed species.

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