Question Dragon fruit vine sudden die back problem

Discussion in 'Fruit & Vegetable Growing' started by Mark, Feb 18, 2014.

  1. Mark

    Mark Founder Staff Member

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    One of my dragon fruit vines has suddenly died back in several areas quite severely too! :shock: It may have started from small rust type spots and then rapidly spread up the vine arm but I can't be sure. There are some out spots also affected (not in pic) and then there are parts of the plant which seems to be growing fine...

    I haven't seen this problem in any dragon fruit before.

    If anyone knows what the problem is or has seen it before then please let me know.

    sudden die off of dragon fruit vine.jpg
     
  2. armysnail

    armysnail Active Member Premium Member

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    I've never grown Pitaya but it looks like some type of fungal disease. I'd suggest pruning all infected parts, enclose in plastic and remove from the site. Try a broad spectrum fungicide or phosphoric acid. If I remember, I'll ask the nurseryman I know if he is familiar with diseases of Pitaya.
     
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  3. Mark

    Mark Founder Staff Member

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    Cheers, I had a feeling it was fungal - it has finished fruiting so I'll give it a spray and quarantine the prunings. Thanks for that - it's handy having a horticulturist drop by the forum :D
     
  4. Amanda

    Amanda Member Premium Member

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    Hey Mark,
    How did you go with the pitaya fungus? I've got some yellow/orange fungal looking spots on mine at the moment, what did you use to treat it?
     
  5. Mark

    Mark Founder Staff Member

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    Hi Amanda, I have used a general copper fungicide in the past but what really helped was extra watering from our grey water system which was totally by accident. After about two weeks of daily watering the vine went crazy growing heaps of new healthy shoots and also healing some of the rust affected stems - I was very surprised! Also, I continue to prune out rust spots or rotten stems.
     
  6. ClissAT

    ClissAT Valued Member Premium Member GOLD

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  7. Amanda

    Amanda Member Premium Member

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    Thanks! I think that may be my problem! I think I may have some of the egg sticks on the effected cacti, I thought they were roots because it's a transplant.
    The plant is probably lost now hey?
     
  8. ClissAT

    ClissAT Valued Member Premium Member GOLD

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    If those old brown leaves are the total of your plant then yes it is lost.
    However if there are lower or other branches that are not brown but still have some greenness to them then a good spray with pyrethrum should do the job along with some TLC in the form of a good fertilizer & some nice new composty soil.
    Maybe even some seaweed solution sprayed on each week.
     
  9. Mark

    Mark Founder Staff Member

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    That's my plant in the pic - first post. It has now fully recovered and is going gangbusters! I'll post a pic tomorrow if I remember.
     
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  10. Amanda

    Amanda Member Premium Member

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    I can't seem to upload a pic, my pics are too big!

    I did check the cacti for what I thought might be egg sticks, but thankfully they weren't! They were just roots
     
  11. Amanda

    Amanda Member Premium Member

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    Hoping this works
     

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  12. Amanda

    Amanda Member Premium Member

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    This is the main stem :-/
     

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