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Dahlia tuber help

Good morning, I hope you are well.
I decided to check my stored tubers yesterday. Can anyone tell me what this is please?
Thanks 
Lisa
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Posts

  • B3B3 Posts: 27,505
    Looks like they're beginning to sprout. Did you have dahlias with dark leaves last year?
    In London. Keen but lazy.
  • AnniDAnniD Posts: 12,585
    It looks to me as though they're beginning to sprout :) . This can happen even when they're stored in the dark. 
  • B3 said:
    Looks like they're beginning to sprout. Did you have dahlias with dark leaves last year?
    Thanks B3.
    yes, these are a dark leaf variety. I was worried it was some type of gall, so thanks.

  • AnniD said:
    It looks to me as though they're beginning to sprout :) . This can happen even when they're stored in the dark. 
    Thank you. I thought I might need to bin these in case it was something nasty. Phew.
  • @jaimelebird - sorry, my money is on leafy gall.  Have they been stored somewhere warm?  If not, they are too far advanced for current climatic temperatures to sprout naturally in such profusion.  Just doesn’t look right to me.  Sadly, the incidence of dahlia diseases is increasing especially on imported tubers.
  • 2 point 4 said:
    @jaimelebird - sorry, my money is on leafy gall.  Have they been stored somewhere warm?  If not, they are too far advanced for current climatic temperatures to sprout naturally in such profusion.  Just doesn’t look right to me.  Sadly, the incidence of dahlia diseases is increasing especially on imported tubers.
    Thanks. That was my concern. I wonder should I bin only the ones with obvious signs or throw all that are in the same bag if vermiculite?
  • AnniDAnniD Posts: 12,585
    edited January 2021
    I had a look at leafy gall and crown gall as well
     https://www.rhs.org.uk/advice/profile?PID=141
    I must admit l thought they were sprouting due to being stored somewhere comparatively mild, but @2 point 4's comments have made me think twice. 
    My personal take is throw away those affected and keep a very close eye on the rest, but hopefully someone who has personal experience can confirm this. 
  • Thanks AnniD
  • @jaimelebird - yes, what @AnniD says.  Throw out any affected tubers and keep an eye on the rest.

    Put the infected ones in the council landfill bin as opposed to composting/green bin.  You don’t want it spreading elsewhere.  If you can remember where it came from out of your garden, you can apply a biocide drench.  Put one fluid ounce of bleach in a gallon of water and water it in.  Do it fairly soon so it has time to soak in.  In the spring, dig in some well rotted manure or home made compost in order to restore the soil’s flora and fauna.
  • 2 point 4 said:
    @jaimelebird - yes, what @AnniD says.  Throw out any affected tubers and keep an eye on the rest.

    Put the infected ones in the council landfill bin as opposed to composting/green bin.  You don’t want it spreading elsewhere.  If you can remember where it came from out of your garden, you can apply a biocide drench.  Put one fluid ounce of bleach in a gallon of water and water it in.  Do it fairly soon so it has time to soak in.  In the spring, dig in some well rotted manure or home made compost in order to restore the soil’s flora and fauna.
    Wow. Thanks so much.
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