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Scribbly gums

philinsydney

By philinsydney
in TROPICAL LOOKING PLANTS - Other Than Palms

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philinsydney Mentor

philinsydney

Posted
Posted

DSCF0393-1.jpg

They say that these picturesque scribbles are not possible outside Australia because the moths whose larvae create them only live here.

DSCF1513.jpg

Philip Wright

Sydney southern suburbs

Frost-free within 20 km of coast

Jerry@TreeZoo Grand Master

Jerry@TreeZoo

Posted
Posted

At first I thought you were describing a dental gum disease!  :-)

That is a neat picture.  It almost looks like someone scribbled on your photograph.  I suppose this is a moth (caterpillar) that feeds on the cambium and the damage shows up when the bark peels away?  Does it often kill the tree or has the tree and moth co-evolved to live with one another?  We have something similar here in our pines attacked by beetles, but you don't see the damage until the pine is dead and the bark falls off.

Jeremiah

So many species,

so little time.

Coconut Creek, Florida

Zone 10b (Zone 11 except for once evey 10 or 20 years)

Last Freeze: 2011,50 Miles North of Fairchilds

philinsydney Mentor

philinsydney

Posted
  • Author
Posted

Jerry, that's right. The larvae burrow between the layers of bark, then the tracks are exposed when the outer layer peels off. They don't seem to harm the trees at all.

Philip Wright

Sydney southern suburbs

Frost-free within 20 km of coast

fastfeat Grand Master

fastfeat

Posted
Posted

Philip--

I'm assuming these eucs (Corymbias?) are species that shed their bark (and borers) annually, no?

SoCal and SoFla; zone varies by location.

'Home is where the heart suitcase is'...

_____

"If, as they say, there truly is no rest for the wicked, how can the Devil's workshop be filled with idle hands?"

philinsydney Mentor

philinsydney

Posted
  • Author
Posted

They are actually Eucalyptus, not Corymbia

There are a few species of closely related scribbly gum: these ones are E. haemostoma. They all belong to the Monocalyptus sub-genus; the ones with a single operculum (bud cap), which also includes regnans, niphophila and pauciflora.

I think they do peel annually.

Philip Wright

Sydney southern suburbs

Frost-free within 20 km of coast

fastfeat Grand Master

fastfeat

Posted
Posted

Philip--

Does each euc species have a specific insect, or does one species of insect affect all trees?

SoCal and SoFla; zone varies by location.

'Home is where the heart suitcase is'...

_____

"If, as they say, there truly is no rest for the wicked, how can the Devil's workshop be filled with idle hands?"

philinsydney Mentor

philinsydney

Posted
  • Author
Posted

It's hard to find out that information. If they are different species of moth I'd say they were in the same genus.

Philip Wright

Sydney southern suburbs

Frost-free within 20 km of coast

philinsydney Mentor

philinsydney

Posted
  • Author
Posted

I forgot to mention they are only 1mm-2mm in length, so are rarely seen.

Philip Wright

Sydney southern suburbs

Frost-free within 20 km of coast

DoomsDave Grand Master

DoomsDave

Posted
Posted

Hmm.

Wish I could peel all of my parasites . . . .

Let's keep our forum fun and friendly.

Any data in this post is provided 'as is' and in no event shall I be liable for any damages, including, without limitation, damages resulting from accuracy or lack thereof, insult, or lost profits or revenue, claims by third parties or for other similar costs, or any special, incidental, or consequential damages arising out of my opinion or the use of this data. The accuracy or reliability of the data is not guaranteed or warranted in any way and I disclaim liability of any kind whatsoever, including, without limitation, liability for quality, performance, merchantability and fitness for a particular purpose arising out of the use, or inability to use my data. Other terms may apply.

  • 4 weeks later...
DoomsDave Grand Master

DoomsDave

Posted
Posted

Actually, on a more serious note, we have the infamous Eucalyptus Long Horned Beetle (git along, yah!  Rawhide) here in the Wild West of California and they pop and sizzle great when you burn infested logs in the fireplace . . . . . . :P  :P

Let's keep our forum fun and friendly.

Any data in this post is provided 'as is' and in no event shall I be liable for any damages, including, without limitation, damages resulting from accuracy or lack thereof, insult, or lost profits or revenue, claims by third parties or for other similar costs, or any special, incidental, or consequential damages arising out of my opinion or the use of this data. The accuracy or reliability of the data is not guaranteed or warranted in any way and I disclaim liability of any kind whatsoever, including, without limitation, liability for quality, performance, merchantability and fitness for a particular purpose arising out of the use, or inability to use my data. Other terms may apply.

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