What are these Weird Bulbs or Galls surrounding wild rose bush stems? - Ask Extension
I found these strange looking bulbs surrounding my wild rose bush stems. I could only see them clearly in fall and winter since all the leaves dropped...
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What are these Weird Bulbs or Galls surrounding wild rose bush stems? #821337
Asked February 28, 2023, 2:29 PM EST
I found these strange looking bulbs surrounding my wild rose bush stems. I could only see them clearly in fall and winter since all the leaves dropped off. Another colleague said they might be galls but one is very large and the others have no hair.
What are these?
Cuyahoga County Ohio
Expert Response
From the pictures the best I can determine it the plant has a Crown Gall. I found some reliable websites on these galls and listed them below. If you are curious about the contents of the galls, cut them open and see what is inside.
https://pnwhandbooks.org/plantdisease/host-disease/rose-rosa-spp-hybrids-crown-gall
https://penrosefriends.org/how-do-you-treat-crown-gall-on-roses/
https://blogs.ifas.ufl.edu/nfrec/2017/11/06/be-on-the-lookout-for-rose-crown-gall/
I wish you success in controlling these growths on your roses.
https://pnwhandbooks.org/plantdisease/host-disease/rose-rosa-spp-hybrids-crown-gall
https://penrosefriends.org/how-do-you-treat-crown-gall-on-roses/
https://blogs.ifas.ufl.edu/nfrec/2017/11/06/be-on-the-lookout-for-rose-crown-gall/
I wish you success in controlling these growths on your roses.
