Ponciana Tree - Crown seems to be dieing

Mred215September 10, 2012

We have a Ponciana tree which over the past few weeks appears to be dieing from the top. Conditions lately have been extremely dry, with cold nights and warm days. The tree is located just East of Brisbane, Australia, to give you an idea of the climate in the area, and it is approximately 8 years old.

The lower branches of the tree still appear to be healthy and the leaves are green.

I have uploaded two images of the tree and the affected branches.

Any suggestions as to what might be causing this, or how to fix the problem?

Thank you for reporting this comment. Undo

Second image as mentioned.

    Bookmark   September 10, 2012 at 8:15PM
Thank you for reporting this comment. Undo
Steve Massachusetts Zone 5b

Do you realize that you posted this to the Hosta forum?

In any case a quick google search shows defoliation is usually done by Pociana caterpillars or Snowbush caterpillars. Check the link below.

Have you watched "The Flame Trees of Thika"?


Here is a link that might be useful: Florida State Horticulture

    Bookmark   September 10, 2012 at 8:37PM
Thank you for reporting this comment. Undo

Thanks for the response. I've recreated this post in the trees forum to try and get more accurate help.

Also I'm in Australia and according to the document that you linked the caterpillars in question only occur near the US. Bit far away.

    Bookmark   September 10, 2012 at 11:17PM
Thank you for reporting this comment. Undo
Steve Massachusetts Zone 5b

I'm not familiar with Australian geography so I don't know where Queensland is exactly, but you may have missed this part.

This caterpillar has been released as a biocontrol agent for management of Jerusalem thorn in northern Australia where the plant has become an invasive weed species.

These caterpillars are essentially cutworms that defoliate trees. It may not be the cause but it's worth checking. A contact insecticide on the tree base or a sticky band will stop them. Good luck.


    Bookmark   September 11, 2012 at 6:19AM
Thank you for reporting this comment. Undo

Well,Poincianas only grow in Florida,and other sub-tropical regions of USA. Key West has some magnificent ones,but this is still the hosta forum. Sorry! Phil

    Bookmark   September 11, 2012 at 9:04AM
Thank you for reporting this comment. Undo
jan_on zone 5b

Yes its a hosta forum, but how great that someone from Australia stumbled in. Hope you will plant a hosta and come back to tell us about it - I don't think we have any fans from 'down under'.

    Bookmark   September 12, 2012 at 12:03PM
Sign Up to comment
More Discussions
Hosta Smart Phone App
I think I have my hubby convinced to write me a smart...
need help for my yard
I need ideas for this boring yard. Southeast PA, West...
First Victim
Had put a few precautionary pellets about a while ago...
frugaljon z8 UK
YEA PIPS!!!!!!
Oh, wait a minute, those are tulips. : {
Jon 6a SE MA
Private email to a poster
Now you CAN privately e-mail a poster...as I just now...
Babka NorCal 9b
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™