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In 1982, a new species of psyllid, Cardiaspina jerramungae, reached outbreak levels on Eucalyptus occidentalis. The primary host species grows in remnant stands in the Lower Great Southern region of Western Australia and until this event was not recognised to be associated with insect outbreaks. Herbarium specimens, a largely unexploited source of data for temporal and spatial history of ecological...
Larvae of the gumleaf skeletoniser Uraba lugens Walker can be a severe defoliator of jarrah (Eucalyptus marginata) forest in southwest Western Australia. Extensive outbreaks that developed in the summer of 2010/2011 affected more than 250 000 ha. Rainfall or temperature anomalies correlated over large distances can be a lead to regionally synchronous population dynamics of species. These are known...
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