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Citrus conditions causing symptoms similar to huanglongbing

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Huanglongbing, also known as ‘citrus greening’, is a lethal bacterial disease of citrus. There are other diseases of citrus that can cause similar symptoms to HLB.

On citrus, huanglongbing can cause a range of symptoms, including:

  • uneven blotchy mottling and discolouration of leaves
  • shoot yellowing
  • leaf drop
  • branch dieback
  • small, lopsided and bitter-tasting fruit
  • fruit drop.

More detailed information to assist in the recognition of huanglongbing-infected citrus trees can be found in the Huanglongbing in citrus fact sheet.

Author(s): Biosecurity Queensland

Published: September 1, 2011

Date added: March 14, 2019

Keeping an eye on pests how to report a suspect pest

Any unusual plant pest, disease or weed should be reported.

Reporting hotlines operate in both Australia and New Zealand (numbers shown below).

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.

Click here for details on what to expect.