Hickory Tree Leaf Disease

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Submitted by Nav Ghimire on 9/8/2011
Good morning friends,
A client dropped the Hickory tree leaves with gall on it. Please help me to identify the problem with solutions.
Thank you.
Nav Ag Agent Green LAke COunty

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Reply by Phil Pellitteri on 9/8/2011
Nav
It is one of the many Phylloxera galls- it is cosmetic and does not harm the tree. We normally do not suggest control- could use a systemic in the fall- Imidacloprid- but it is expensive and the galls often do not reappear the nest year in numbers
Phil

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