By Sue57
United Kingdom 
Hi.
Please can someone help.
I'm have a shrub in my garden just starting to get buds on it, but also in noticed these ball things on it, never seen them before.
It have attached a photograph.
Thank you.
1 Mar, 2017
Answers
It might be an insect gall, but it looks horribly like crown gall, an incurable bacterial infection of plants.
1 Mar, 2017
It's very common on Forsythia, which I think this is, and doesn't seem to do any harm. I think it's a proliferation of shoots.
1 Mar, 2017
Hmm...apparently common, but slow death to affected branches. There is still some debate as to the exact cause:
http://plantclinic.cornell.edu/factsheets/forsythiagall.pdf
2 Mar, 2017
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I'm interested to know too.
1 Mar, 2017