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The association of Phytophthora species in the blackberry (Rubus anglocandicans) decline in the South-West of Western Australia

Aghighi, S., Fontanini, L., Yeoh, P.B., Burgess, T.I., Scott, J.K. and Hardy, G.E.St.J. (2013) The association of Phytophthora species in the blackberry (Rubus anglocandicans) decline in the South-West of Western Australia. In: XII Annual Conference of the Dieback Information Group (DIG), 28 June, Perth, Western Australia.

Abstract

Rubus anglocandicans is the most widespread species of European blackberry in the south-west of Western Australia (WA). This Weed of National Significance in WA primarily invades river banks in conservation, forestry and agricultural areas. Exotic strains of the blackberry rust, Phragmidium violaceum, were introduced to WA as biological control agents, but in most areas the rust was not effective. In 2007 while monitoring establishment of the released rust strains, unexplained dead and diseased blackberry plants were discovered at two locations on the banks of the Warren and Donnelly Rivers in the south-west. The extent of the disease following the removal of dense blackberry infestations has lead to it being called “blackberry decline”. Surveys between 2010 and 2012 led to the recovery of different Phytophthora species as well as other abiotic and biotic factors that appear associated with the decline. We propose a conceptual model to describe the factors that are hypothesised to be involved in the decline phenomenon of R. anglocandicans.

Publication Type: Conference Item
Murdoch Affiliation: Centre for Phytophthora Science and Management
School of Veterinary and Life Sciences
URI: http://researchrepository.murdoch.edu.au/id/eprint/33411
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