Emex australis, Biological control agents, Phomopsis emicis
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A fungus has been assessed both in Australia and South Africa since 1989 for its potential to control doublegee.
Under optimal environmental conditions it causes a severe stem blight which ultimately kills the plant. It also infects seeds, and caused up to 30 per cent mortality at a field site near Badgingarra.
Hopes to develop the fungus as a mycoherbicide (fungal killer of plants) have had to be dropped because it produces a potent toxin but it is still contributing to control in the field.
Shivas, Roger and Scott, John
"Biological control of doublegee : fungi may be another weapon,"
Journal of the Department of Agriculture, Western Australia, Series 4: Vol. 35:
2, Article 6.
Available at: https://library.dpird.wa.gov.au/journal_agriculture4/vol35/iss2/6