Acacia baileyana x Acacia decurrens

Cootamundra Wattle x Green Wattle (Hybrid) at Kambah, ACT

Acacia baileyana x Acacia decurrens at Kambah, ACT - 29 Aug 2022
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Identification history

Acacia baileyana x Acacia decurrens 29 Aug 2022 MichaelMulvaney
Acacia baileyana x Acacia decurrens 29 Aug 2022 GinaK

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User's notes

Growth on leaves

5 comments

GinaK wrote:
   29 Aug 2022
GinaK wrote:
   29 Aug 2022
There were also red growths that look like berries on the leaves of these wattle trees
MichaelT wrote:
   29 Aug 2022
They look like galls, which are caused by wasps
GinaK wrote:
   30 Aug 2022
What will these do to the plant? What will they develop into?
MichaelT wrote:
   30 Aug 2022
Hi GinaK this is quite a good resource for galls http://oneminutebugs.com.au/gall-inducing-insects/

But the short answer is that wasps will eventually emerge from them and they won't do much to the plant if there is only a small number of them. A large number can stunt the growth of the plant and eventually kill it. Gall producing insects are actually used as biological controls for plants in some instances.

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  • 1 - 3 Abundance
  • 29 Aug 2022 11:32 AM Recorded on
  • GinaK Recorded by

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