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Old May 12, 2010   #1
ContainerTed
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Default Is it animal or vegetable?????

I was over at my brother's place today, and he had a tree (maybe 15 feet tall) with the conditions in the pictures all over it. I've never seen this before, but then I've spent a lot of time in drier climates like the Mojave Desert.

The pictures also show the reverse side of the leaves where you can see the distortion of the leaf from these "cancers" (for lack of a better word).

Anybody seen this before???

One leaf had that little white caterpillar, but I don't know what it is.

Ted
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File Type: jpg BroLeaf2.JPG (68.4 KB, 42 views)
File Type: jpg BroLeaf3.JPG (64.8 KB, 17 views)
File Type: jpg BroLeaf4.JPG (67.1 KB, 22 views)
File Type: jpg BroLeafBug.JPG (65.9 KB, 26 views)
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Old May 12, 2010   #2
TZ-OH6
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Do a goodle search on maple leaf galls and you should be able to identify which fly or mite is responsible.
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Old May 12, 2010   #3
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That very well may be a maple bladder gall. It is caused by a very small mite that ovrerwinters in the bark of the maple tree and migrates to the leaves in May. The gall is made up of leaf material and the mite lives and mates inside the hollow gall. In the fall, the mite goes back into the bark.

There really isn't anything you can do now. Early in the spring an oil spray could kill the mites. While the galls are ugly, they don't pose much of a threat to the health of the tree. The galls will start red, turn greenish and then black. Removing the galls manually will not do much good as that will make holes in the leaves.

That is my opinion, but there may be others who disagree. Plant disease people and bug people may call what you have the glorious wonder of nature at work. I would rather gas the buggers and get back to nice green leaves next year.
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Old May 12, 2010   #4
mdvpc
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I dont know what it is, but its gross.
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