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jvanvliet
08-17-2012, 08:54 AM
Found this on a tree in one our developments.

The bark has lessions covering the entire tree, excesive leaf drop with what appears to be a fungus on them.

I want to say it's a live oak, but the leaves don't look right.

Anybody have any ideas what this disease is?

olive123
08-17-2012, 11:23 AM
lichens on the tree...no issue. looks like rugose on the leaves

ClipXE Software
08-17-2012, 12:18 PM
http://en.wikipedia.org/wiki/Lichens

Ric
08-17-2012, 07:48 PM
lichens on the tree...no issue. looks like rugose on the leaves

Lichen is in the family of epiphyte which are non self supporting AIR plants that need a structure to grow on. Lichen in itself is not bad but sets up the proper environment for algae to grow under or around it. Lichen might not be the bad guy but algae sure is because it grows into the bark and causing it to die.

Cooper sulfate painted on the Lichen is the best cure and Citrus Groves schedule it every 3 to 4 years.

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jvanvliet
08-17-2012, 07:56 PM
Lichen is in the family of epiphyte which are non self supporting AIR plants that need a structure to grow on. Lichen in itself is not bad but sets up the proper environment for algae to grow under or around it. Lichen might not be the bad guy but algae sure is because it grows into the bark and causing it to die.

Cooper sulfate painted on the Lichen is the best cure and Citrus Groves schedule it every 3 to 4 years.

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Thank you;

& on the leaves?

easy-lift guy
08-17-2012, 09:47 PM
T scale and Lichens
easy-lift guy

Ric
08-18-2012, 09:50 AM
Thank you;

& on the leaves?

I am not real good with Pictures but it looks like some kind of scale. Possible Cottony Cushion scale that has been weathered a little. It does not have the typical round shape of most scales.

I strongly suggest you call a Professional Lawn Care company to take care of the problem. Cooper sulfate can cause irreversable eye damage.

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phasthound
08-18-2012, 10:25 AM
I strongly suggest you call a Professional Lawn Care company to take care of the problem.

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I'm sure you meant to say call a licensed professional Tree care company.

Ric
08-18-2012, 06:26 PM
I'm sure you meant to say call a licensed professional Tree care company.

Yes licensed Professional TREE care company. Thank you for the Correction.


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jvanvliet
08-20-2012, 07:58 AM
lichens on the tree...no issue. looks like rugose on the leaves

It's what I thought also, I don't see any honeydew or sooty mold under the tree. I'll have to throw a ladder up and get a better look at some living leaves.

ClipXE Software
08-21-2012, 05:24 PM
http://upload.wikimedia.org/wikipedia/commons/4/4a/Lichen-covered_tree%2C_Tresco.jpghttp://upload.wikimedia.org/wikipedia/commons/d/da/Lobaria_pulmonaria_010108c.jpgNo big deal. Even still, I wouldn't go out of my way to touch it.