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  • Cypinidae, maybe

    • Posted Jun 28, 2012 11:11 AM

      If the objects are rather hard and somewhat wood-like, it's probably a gall wasp... most species cause galls on the underside of leaves, but there are others which sit on roots only... with a multitude of color and shape options. If it's really a gall, then there's a tiny larva inside, protected by the plant tissue. As far as I know, they don't harm oak trees - at least, here in europe - I don't know about Texas happy.gif
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