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On citrus, huanglongbing can cause a range of symptoms, including:
More detailed information to assist in the recognition of huanglongbing-infected citrus trees can be found in the Huanglongbing in citrus fact sheet.
If you have any questions, please contact nspcoordinator@phau.com.au.
Author(s): Biosecurity Queensland
Published: 1 September, 2011
Date added: 14 March, 2025
Any unusual plant pest, disease or weed should be reported.
Reporting hotlines operate in both Australia and New Zealand (numbers shown below).
Australian Exotic Plant Pest Hotline
New Zealand Pest and Disease Hotline
Pests can also be reported using apps, such as MyPestGuide® for Australia, that allow you to submit a photo of the pest or symptoms.
Every report is taken seriously and handled confidentially. Management of calls varies in different areas, but to the same end.
Join a community of professionals dedicated to strengthening surveillance capacity and capability across the Australasia-Pacific region.
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