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Absence of black parlatoria scale, Parlatoria ziziphi (Lucas) (Hemiptera: Diaspididae) from Australia

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The black parlatoria scale, Parlatoria ziziphi, is considered to be absent from Australia despite previous reports of its presence in the Darwin area of the Northern Territory in 1914 and 1915. A search of the National Australian Plant Pest Database revealed the existence of only five samples of this species from Australia, three samples from Darwin and two further collections from interceptions likely at the international quarantine border in Sydney. Intensive plant pest surveillance activities over the past 20 years, which included specific surveys for P. ziziphi, have not detected this pest species in the Darwin area or any other region of Australia. It is probable that the scale was incidentally eliminated from the country during an eradication program for citrus canker that, between 1916 and 1922, removed all known citrus plants in the Northern Territory above latitude 19°S.
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Document Type: Research Article

Publication date: August 1, 2013

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