Galls on Campus 7: Walnut

Walnut on campus 22 July 11a i

What on earth is this tree?

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One Response to Walnut on campus 22 July 11a i

  1. Jim says:

    Juglans regia, after Roundup was applied to the soil or to nearby plants. We see a lot of Roundup injury to plants here in the US.

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