Identification and characterisation of disease suppressive soils in the Western Region (DAW00201)

Document Type

Conference Proceeding

Publication Date

15-5-2014

Conference Title

2014 Soil Biology Symposium - AgriBio-Bundoora, Melbourne

Place of Publication

Melbourne

Disciplines

Biosecurity

Abstract

From 331 paddocks assessed during 2010 to 2012 in WA, 15 paddocks for rhizoctonia, six for take-all, 22 for crown rot and one for RLN were identified as “potentially” suppressive to disease.

After confirmation with a pot bioassay, two paddocks were highly suppressive and five paddocks showed moderate suppression to rhizoctonia. Only two paddocks recorded were highly suppressive to crown rot. The bioassay for take-all failed to confirm any sites as being suppressive to this disease. The one RLN identified was not assessed.

A selection of two suppressive sites for rhizoctonia were more similar to each other than the other farms for the bacterial microbial analysis than the two non-suppressive sites (collaborative research with Helen Hayden, DEPI).

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