Growth on Leaf

Lenny Mexted · 19th August 2008, 03:25 PM

:gday_mate any ideas on what the growth on the leaf is and or what is causing it. trees are in marina car park 20 or so growing in the area only 2 affected. Who knows.

Greenman UK · 19th August 2008, 06:18 PM

These are leaf galls of some description!
Not to sure of your tree species without clearer pictures.
A gall is an abnormal growth reaction of the plant in response to an intrusive organism such as a bacterium, fungus, nematode, mite, insect or possibly am virus.
There is no health risk to your tree, but it looks like it may messing with the appearance of the crown!
Unfortunately there is no real control measure that I know of! However someone might know of a method of control??
Sorry I could not give you preventative actions and only descriptive analysis.

Lenny Mexted · 1st September 2008, 01:36 PM

Hey mate got some more photos of the tree has ingolfed the hole tree now but still hasn't spread to other trees.

Lenny Mexted · 4th September 2008, 08:19 AM

Still working out how to use this computer guys, hopefully these photos work out a bit better. spead throughout the hole tree now but has spread to any others yet still only in the 2.

Eric Frei · 9th September 2008, 07:31 PM

Maybe they're some sort of psyllid, mite or something. If you pick them off with tweezers and squish them do they have blood and guts of insects or tree goo like a gall?

It seems similar to what some hibiscus get here, and a mite is the original cause but you dont really see them just the effect.

From the PDF attached.

Quote:

Contact insecticides and miticides can prevent
galls by killing the adult stage of the gallmaker.
Systemic insecticides, both foliar and soil applied,
theoretically should provide good gall control.
However, these products will not cure galls that
have already formed, and their ability to prevent
gall formation also depends on accurate timing.

19th August 2008, 03:25 PM	#1
Lenny Mexted Sappling Join Date: May 2008 Location: woody point redcliffe qld Posts: 5	Growth on Leaf :gday_mate any ideas on what the growth on the leaf is and or what is causing it. trees are in marina car park 20 or so growing in the area only 2 affected. Who knows. Attached Thumbnails

19th August 2008, 06:18 PM	#2
Greenman UK Sappling Join Date: Aug 2008 Location: Birmingham UK Posts: 16	Re: Growth on Leaf These are leaf galls of some description! Not to sure of your tree species without clearer pictures. A gall is an abnormal growth reaction of the plant in response to an intrusive organism such as a bacterium, fungus, nematode, mite, insect or possibly am virus. There is no health risk to your tree, but it looks like it may messing with the appearance of the crown! Unfortunately there is no real control measure that I know of! However someone might know of a method of control?? Sorry I could not give you preventative actions and only descriptive analysis. __________________ BSc (Hons) For, HND For, M.Arbor A. CEnv Consultant Arboriculturist

1st September 2008, 01:36 PM	#3
Lenny Mexted Sappling Join Date: May 2008 Location: woody point redcliffe qld Posts: 5	Re: Growth on Leaf Hey mate got some more photos of the tree has ingolfed the hole tree now but still hasn't spread to other trees.

4th September 2008, 08:19 AM	#4
Lenny Mexted Sappling Join Date: May 2008 Location: woody point redcliffe qld Posts: 5	Re: Growth on Leaf Still working out how to use this computer guys, hopefully these photos work out a bit better. spead throughout the hole tree now but has spread to any others yet still only in the 2.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode