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Abstract:
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(En)
The nematode vectored plant-pathogenic fungus Dilophospora alopecuri is an antagonist of ARGT causal organisms and is responsible for ARGT decline in the Gnowangerup area of WA. However, current distribution of Dilophospora is limited, being restricted to small areas of the southern wheatbelt (in Western Australia). Early establishment experiments showed that the fungus can establish and persist outside its current range, suggesting that the natural range of Dilophospora in Western Australia is a function lturing substrate. The economic method for producing Dilophospora inoculum is to culture the fungus on gamma irradiated rice at 25oC for 3-4 weeks. Air drying the inoculum is not necessary. Field and pot experiments have demonstrated that moist inoculum
l gall production, and producing non-toxic bacterial galls. These results have clearly demonstrated that some non-toxigenic bacteria have great potential for biocontrol of ARGT.
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