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Rose Gall?

Posted by sherry14226 none (My Page) on
Mon, Jun 2, 14 at 22:32

My neighbor has a rose bush which shares a fence of mine, and as a result it spills over into my yard. To my knowledge the rose is fairly old, it's been there as long as he has - so at least 15 years. It's huge with tiny white roses.

I do my part in taking care of my end, pruning deadness and buying ladybugs ect. This year tho I noticed all these little nubs all over several of the branches that were not there the year before. I fear it may be crown gall, even tho the lower, thicker, older branches and base do not have any nubs, excess growth or deformities. I have not checked the roots because as I mentioned it's huge and I would need my neighbors permission.

I am not sure what I can do (besides cry because it's the prettiest thing in the garden and never has had any problems in the 6 years we've been here). Its not my plant, and I doubt he will take any extreme action. Any suggestions I would greatly appreciated. Thanks.

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Follow-Up Postings:

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RE: Rose Gall?

They are galls and they are probably (from their being widespread on two stems) systemic through the plant.

OTOH, the rose is still blooming and from my experience with The Fairy in three states, there are roses that can live with galls. I just wouldn't replant a rose where this one has been planted.

The rose might be Alba Meidiland (if it reblooms dependably and has no scent that I can detect.)


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RE: Rose Gall?

I have not seen crown gall go systemic, but Ann may be right. Usually aerial galls are found at old pruning sites where the bacteria entered through wounds, but these are all along the stem. They are probably shedding bacteria onto the soil beneath.

The rose might carry on for a long time. I guess I would wait until the flush is over and prune out all the infected stems on my side, sterilizing the pruners after every cut with a bactericide. Maybe do this every year. There is a product called Galltroll, but I am not familiar with it.


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RE: Rose Gall?

Thanks to both of you for your replies, I am a novice gardener at best and not very knowledgeable. It's disheartening to hear but what I expected.

The rose has not bloomed yet (that picture is from a few years ago), which is typical based on my experience with it. It does have many buds tho that will probably burst within the next few weeks. So I should wait until its done blooming to prune?

I bought a brand new pair of shears. I will disinfect both the old and the new from now on, but the old will only be used on this bush just to be extra safe.

I'll let my neighbor know as well. I plan to prune back his growth, I know he won't mind. While I doubt he would ever remove the rose unless it were on its last legs, he has a significant bonsai collection and several other roses which I would hate to see suffer if he did not know to take precautions.

I did see something about the Galltroll, but I couldn't find much information about it, and whether I could even purchase it or that it would be helpful for an already infected rose - but I am going to try to look into it further.

Thanks again for all your help.


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