Urban Plant Health Network

Topic: orange

Orange tree
published - 30 December 2019
By Jeff Milne (Citrus Australia)
Look out for this citrus pest at your place as part of the bigger picture

Citrus trees in backyards and orchards in the USA are being killed by a small bug called the Asian Citrus Psyllid (ACP). We want to keep it out of Australia – but we need your help!
The ACP is a small (3-4mm) sap-sucking bug that resembles a small cicada. It can …
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What bug is that?

Gall on a lemon tree
published - 1 October 2019
By Jo Chong Wah (Agriculture Victoria) and Jeff Milne (Citrus Australia)
Do you have citrus gall wasp in your garden?

Citrus gall wasp (Bruchophagus fellis) affects all types of citrus across Australia. The wasp produces lumpy, woody galls around their larvae on branches. The galls weaken the trees, making them produce less fruit and sometimes causing branch dieback.
Urban gardeners are encouraged to act now to stop the spread of this …
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Uncategorized, What plant disease is that?