Trees and Shrubs forum: help something has attacked my hickory tree!!!

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Name: Jelinda AKA jojoe Ivey
Thomson,Ga. (Zone 8a)
If a door closes look for a window!
Heucheras Plant and/or Seed Trader Hostas Hummingbirder Region: Georgia Cactus and Succulents
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May 16, 2012 11:45 AM CST
The tree isn't full grown but it's a good size hickory tree.We have them growing all over our property and we really do enjoy them and the wild life they attract.

This one i have noticed has been attacked.I don't even know how to describe it.So here's my picture show of leaves i removed from the tree.

I think i have them in order from beginning to end of the "bug's" life on the leaves.

Here is a leaf that seems to be the beginning.When i broke it open i don't see where there is a bug inside.
Thumb of 2012-05-16/jojoe/c49649
the underside of the leaf start's with the line through the leaf and then busts through the front of the leaf.
Thumb of 2012-05-16/jojoe/8265de
then other leaves looked like this

Thumb of 2012-05-16/jojoe/5096a2

Thumb of 2012-05-16/jojoe/7ad2b8
A green thumb comes only as a result of the mistakes you make while learning to see things from the plants point of view!!
Name: Kent Pfeiffer
Southeast Nebraska (Zone 5b)
Charter ATP Member I was one of the first 300 contributors to the plant database! Plant Database Moderator Plant Identifier Region: Nebraska Celebrating Gardening: 2015
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May 31, 2012 11:12 AM CST

Plants Admin

They are insect galls. The insect that causes it was either too tiny for you to see or it's already completed that part of its life cycle and left the gall. Gall forming insects are extremely difficult to control. They also generally don't cause much harm, other than being unsightly.

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