From what I've observed, yes, the plant is infected and others propagated from it will express the gall when given the chance. Some varieties are much more susceptible to gall infection than others. Ralph Moore's Red Germain was highly susceptible. Francine Austin will spread it around the garden everywhere it roots or layers itself. The Fairy, Lady Carolina and Flower Carpet are also quite susceptible in these parts. Kim

There can be "aerial" crown gall, meaning up on the canes, where the bacteria have been spread by pruning cuts, often a number of galls on a single plant. Traditional advice says that, if you cut well below the galls and disinfect with a bactericide, the plant can be saved. This implies clearly that the infection is not systemic but localized. I can't vouch for that, as I've never had a gall that I judged treatable.

Note that there will be loose bacteria in the vicinity of a gall that are waiting for the opportunity of a wound.

Thanks guys! I appreciate your thoughts on that.

'Flower Carpet', yes that seems to be highly vulnerable. I see galled examples everywhere here.

I wouldn't bother to try to treat a plant with gall.
I'd just "treat" it with a shovel.

One can argue from now 'til the cows come home about whether RMV spreads in a garden (or how many angels can dance on the point of a pin) -- but it is KNOWN that gall will be spread, so why even try???

Jeri

of course jeri, but what about if it is rare/out-of-commerce?

Then pull a Roses of Yesterday and Today and treat it with Galltrol. According to what I was told years ago when visiting there, they treated every plant they sold with the stuff as they had gall all over the property. Kim

Here is a link that might be useful: Galltrol

But there you are, Kim -- Over the years, I have received FOUR plants with gall. One was a potted Austin rose, bought from Sassafrass at a ridiculous price (remember Sassafrass?).

The other THREE galled plants all came from Heirloom.
The two virused Dark Ladies were also identically galled.
So was the Souv. du Docteur Jamain.

None of them actually got roots into the ground, fortunately, but it's possible I may have spread it, pruning.

So, treating things with gall and then selling plants from their infected mother stock doesn't seem to work well, IMHO.

So, unless it was the ONLY one in the world, I'd STILL dump it. Because it is a FAR worse thing to have in the garden than RMV.

We found a remarkably beautiful Maman (or White Maman) Cochet in the Sierra Foothills. Did not collect from it, because it was so badly galled. And that plant is gone, now.

Jeri

Do you remember the amazing Gloire de Dijon pictured in the early Ashdown catalogs? It grew at an acquaintance's house in Hancock Park and covered the two story rear facade. It died from gall. It was many decades old and had been an amazing plant until one year it broke out in growths all over the thing and collapsed. That plant was the source of their stock of GdD. Sandy Gall lost her Leontine Gervais which was pictured in the Arena catalog several times to gall. The wooden fence and arch where the Cl. Maman Cochet now grows (the one I supplied her with from Limberlost when I first learned to push rose through disbudding) is where the LG died. She removed the soil, soaked the hole with a weak bleach solution for several weeks, replaced the soil and planted. I've not heard of any issues with the plant, so I presume it worked. Kim

Title: "Cationic Surfactants: Potential Surface Disinfectants to Manage Agrobacterium tumefaciens Biovar 1 Contamination of Grafting Tools"

See link below.

Here is a link that might be useful: link for above