Galls/Nests In Poplar

Discussion in 'Plants: Identification' started by Lizainmm, May 20, 2020.

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  1. Lizainmm

    Lizainmm Active Member

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    Are these galls? Nests? From the ground, I cannot see anything living near them. They are located about 30-40 feet up. The bark from that height to the ground looks normal. At first glance the tree, which is in a half-acre stand, looks dead. However there are buds on it, which are very slow in opening. The surrounding trees are leafing out well.
    We are in the Ottawa Valley area.
     

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  2. Ron B

    Ron B Paragon of Plants 10 Years

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    High position seems atypical but otherwise it looks like crown gall (Agrobacter).
     
  3. Lizainmm

    Lizainmm Active Member

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    Thanks Ron B. I Googled crown gall and that certainly looks the same.
     

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