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Is this Fire Blight?

Discussion in 'Diseases & Pests' started by ninnymary, Jun 2, 2016.

  1. Jun 2, 2016
    ninnymary

    ninnymary Garden Master

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    I'm afraid it is blight, need confirmation. This is my Little Cado (dwarf avocado tree)
    IMG_0631.JPG IMG_0632.JPG IMG_0630.JPG
     
  2. Jun 2, 2016
    Nyboy

    Nyboy Garden Master

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  3. Jun 3, 2016
    Chickie'sMomaInNH

    Chickie'sMomaInNH Garden Master

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  4. Jun 3, 2016
    journey11

    journey11 Garden Master

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    Usually the first thing you'd notice would be branch tips doing this little number:
    [​IMG]
    The burnt looking canker usually doesn't show up until fall/winter.

    But it's damage of some sort, so I'd prune it out anyway. Use a 10% bleach solution or rubbing alcohol to sterilize your pruning shears after each cut just in case. With fire blight, you need to cut back a good 12" below the damaged area. If you haven't seen any of the "shepherd hook" branch tips like above, odds are good it's not fire blight and you probably don't need to cut off as much.

    My last remaining apple tree has fire blight all throughout it this year and must be cut down. I never did get the first apple off of that young tree. :hit It has been rampant around here for a couple years now. Too much rain makes it worse.
     
    thistlebloom likes this.
  5. Jun 3, 2016
    ninnymary

    ninnymary Garden Master

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    I did get one branch tip that looked like the above picture. If I cut it back 12 inches it flushes it right back to the main stem. It only has 3 branches and they all have the fire blight. If I cut them, I will only have the main trunk.

    No one around me seems to have fire blight and all my other trees are ok.

    Mary
     
  6. Jun 3, 2016
    thistlebloom

    thistlebloom Garden Master

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    I am not real familiar with avocados. I do know that they very sensitive to soil changes around the roots and salinity in the soil, maybe it's reacting to transplanting.
    Although that canker spot on the branch looks grim. I hope you don't have fireblight.
     

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