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alice_rison

Is this crown gall?

2 years ago

I was putting this Amnesia rose from GRF and all the soil came off and shows this lump! Is this gall? Is it contagious? Is the rose salvageable?

Comments (16)

  • 2 years ago

    Based on my limited Google fu research, I do think it is. I had just put it in a pot and the dirt spilled around it, so I’m cleaning everything up. The rose and pot are now in a location 30+ feet away from other roses. I’m worried because it shipped with Brut and was sitting a foot away from other roses waiting to get planted. I hope the bacteria only travels through the dirt and not through the air. Uggg, it was one of the big exclusives too.

  • 2 years ago

    Alice, Sorry to see that. I was hoping someone with more experience would weigh in but since that hasn't happened yet I will comment. I don't know much about it but like you looked it up to educate myself and it does look alot like the pictures. Also it says very contagious. If it were me I'd bag the whole thing up and put it in the trash.

  • 2 years ago

    sure looks like gall to me.

  • 2 years ago

    Thanks everyone! Jadae, that is impressive you were able to save it! Do you think I could take a cutting to transplant or is the entire bush a goner?

    GRF responded immediately and I can either get a refund or replace it with a different rose in stock since they are out of Amnesia. I’m debating between Ashley and Princess Charlene de Monaco.

  • 2 years ago
    last modified: 2 years ago

    Crown gall in all its ugliness. Bag the rose and soil in the pot and discard in household trash. Make sure any tools that came in contact with the rose or the soil in the pot are disinfected with bleach diluted 1 part bleach to 10 parts water. Disinfect the pot also. Nothing else to do. Airborne transmission? What can you do if it occurred or didn't occur? Nothing, except don't worry about what may or may not happen next.

    Get a refund. Too risky getting anything from GRF, in my humble opinion. They could 't see a gall as big as that before shipping it to you? Where's their quality control inspector? Somewhere along the way someone should have seen that gall during potting up.

    GRF has a gall problem. If that rose was growing in their soil, the location where it grew is contaminated. If it was grown elsewhere by another grower, they have a gall problem.

    Moses

  • 2 years ago

    Can new growth look like crown gall? I had a new rose with very similar but smaller suspicious yellowish growth at the soil line, uncovered after repeated watering at the spot. It then turned black by itself, and I was told that it was just new growth. I'm asking because I'm not sure if it's safe to keep around my other roses.

  • 2 years ago

    Agrobacterium is more common than people think, and is found in many different soils, waters, and a vast array of plants, fungi, etc.


    Gardening tools nicking a rose can also cause infection, as can crop tools in wholesale settings. Even a bad graft can cause it due to the exposure between the graft and the rootstock, and I have seen that.


    It's mostly about cultural practices. So lets say a business has their hedges clipped 2x a year, and they also have a very nice watering system. Lets say the watering system runs early spring into late fall. Then, lets say Rose 'WhateverHotLandscapeRoseOfThatDecade' is pruned low, en masse, in October. Do you think hedge pruners always cut perfect stem edges, with perfectly clean blades? Now, imagine alllll of those sprinklers watering those perfectly cut and jaggedly cut stem ends. A recipe for gall. This time near the growth points. Especially the cultivars with wiry stems that don't cut perfectly, or those with stems too tough for electric sheers.


    .

  • 2 years ago

    I agree with Moses.

  • 2 years ago

    I would pry the gall off and try to continue care of the plant. Dispose of the gall.

  • 2 years ago

    You got lucky that the dirt fell off and exposed it!

  • 2 years ago

    GRF isn't the only nursery selling Gall. I got one several yrs ago that I posted on this forum that was all gall from the top of the pot down, I could bsrely wrestle it out of the pot from all the gall. Well known nursery too. Hopefully, they have their act together now. I havent ordered from them again, mostly due to their customer service when I sent them the gall pics. Other reason was half the roses I had bought from them turned out to be the wrong rose.

  • 2 years ago

    My replacement rose is arriving tomorrow. It is supposed to be an Ashley but the tracker is saying Brut. The rose that came in the same box as the one with gall is actually Brut, and it is not doing well. All of the leaves fell off and only one stem is left green. 1 of the 2 Pink O’Hara that came together also died - however, the second one is thriving. So not faring well for the exclusive roses overall. The other 5 non exclusive roses are all doing excellent. Maybe they are from different growers?

  • 2 years ago

    Yes, they do.

  • 2 years ago
    last modified: 2 years ago

    Brooke,

    Take a breather. It may be just fine. Here's what I would do. Let it grow all the way until very late fall giving it v.g. care all along. When dead heading it or pruning it always disinfect your tools afterwards. I part bleach 10 parts water. Come fall, after maple leaves have fallen, and after a couple killing frosts (do you get frosts....wish folks would put their growing zone and location after their names), carefully dig down from soil level around the crown exposing the structure below the soil where gall would be found. Use a stiff paint brush to gently remove the soil around the underground parts. If you see no gall, replace all soil, give a nice water, and breathe a sigh of relief. You disturbed a healthy rose very little. If it is infected with gall, take action.

    If you see gall, dig up the rose, bag it along with the soil from the place where the rose grew. You may find you have 10-15 gallons of soil to remove, but do it. Replacement soil is cheap. Remember to disinfect all tools used. Do not compost any galled soil or rose parts from a galled rose bush.

    Mister Moses

  • 2 years ago

    If you do that, you can pop it off first, and just grow it out in a pot in order to contain the soil. They pop up when twisted upward and to the opposite side. They're a hard, but softly adhered, tissue.