Journal of the Department of Agriculture, Western Australia, Series 4


Lupins, Pleiochaeta setosa, Rhizoctonia solani, Cropping systems, Sowing, Fungicides, Western Australia

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There is increasing concern that brown spot and root diseases may limit the long term viability of lupin cultivation in close rotations in the agricultural areas of Western Australia. Research has found several useful strategies to reduce the impact of brown spot and Pleiochaeta root rot so that losses can be kept to a minimum. Rhizoctonia has proved more difficult to combat. Although less widespread than Pleiochaeta, it has caused severe losses and appears to be increasing in incidence, particularly in the northern wheatbelt. Research has vastly expanded our knowledge of the strains of Rhizoctonia present in our soils and the diseases they cause. Because we can now identify the strains involved, we are better able to examine the impact of management techniques on disease severity and to start screening lupins for resistance to the various strains.