Brief description
Rubus fruticosus agg. Blackberry Blackberry is a highly invasive [Weed of National Significance](http://weeds.ala.org.au/WoNS/blackberry/), that adversely impacts biodiversity and agriculture in Australia. One biocontrol agent has been introduced, the blackberry rust fungus *Phragmidium violaceum*. Blackberry rust is well established in Australia, but further research is needed on its distribution and impact.User Contributed Tags
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