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Strange growth on shrub

Any thoughts on what it might be?

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Joined: Thu May 01, 2008 7:21 pm
Location: Zone 6, NJ (3/M)4/E ~ 10/M

Re: Strange growth on shrub

This is a cedar apple rust gall -- usually galls like this is caused by a insect laying an egg inside, but in this case, it's a disease
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