Yellow spots on cucumber leaves?

Discussion in 'Edible Gardening' started by golcarlilly, Jun 16, 2008.

  1. golcarlilly

    golcarlilly Gardener

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    Hi all,

    We have four cucumber plants which look very healthy and have a couple of flowers on but yesterday we noticed that a couple of the leaves on each plant have yellow spots on them - is this a disease?
     
  2. daitheplant

    daitheplant Total Gardener

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    Any chance of a pic? It could be rust, but without seeing it, I can`t be 100% certain.:)
     
  3. golcarlilly

    golcarlilly Gardener

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    Hi and thanks for the reply, I will take a pic tonight and post it - cheers!:)
     
  4. golcarlilly

    golcarlilly Gardener

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    Here are the pics (sorry took me so long!!)

    [​IMG]

    [​IMG]

    They look healthy enough other than the spots, they have a few fruit coming too! I am not sure what else I should be doing - do I need to remove any of the fruit/shoots or anything or do I just leave them to grow? They are mini/snack size ones btw. Thanks in advance

    [​IMG]
     
  5. golcarlilly

    golcarlilly Gardener

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  6. daitheplant

    daitheplant Total Gardener

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    Golcarlilly, my best advice would be for you to Google Cucumber Mosaic Virus, and hope I`m wrong.
     
  7. Kristen

    Kristen Under gardener

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    Are you feeding them? (Tomato fertiliser, or whatever). Looks like mineral deficiency to me, which appropriate fertilizer should sort out. (Is all new growth healthy?)
     
  8. golcarlilly

    golcarlilly Gardener

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    :( Oh dear cucumber mosaic doesn't sound very good :( not really sure if it is that though, have found pics of downy mildew which look similar, the plants are otherwise really healthy and have flowers and fruit on too? this gardening lark is more complicated than I thought!! We have been feeding them with some organic liquid feed once a week. Do you think I should isolate the plants in case whatever it is might transfer to my tomatoes - they are all in the greenhouse together at present:confused:
     
  9. daitheplant

    daitheplant Total Gardener

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    Golcarlilly, it is not downy mildew. The only thing to do if you are certain it`s NOT mosaic virus, is carry on as you are.:thumb:
     
  10. pete

    pete Growing a bit of this and a bit of that....

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    It could be red spider mite.
    I've had cue leaves go like that in the past.
    I tend not to think its a virus.
     
  11. daitheplant

    daitheplant Total Gardener

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  12. golcarlilly

    golcarlilly Gardener

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    Daitheplant (voice of doom:p) what is the worst case scenario if it is mosaic virus - is it terminal:confused:
     
  13. daitheplant

    daitheplant Total Gardener

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    You burn the plant and hope nothing else is infected. Not a voice of doom.:D Just trying to help and advise.:thumb:
     
  14. pete

    pete Growing a bit of this and a bit of that....

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    Not had much experience of mosaic virus, but would it not distort the new growth? David.

    Have a look on the underside of the affected leaves golcarlilly.
    There maybe very fine webbing and minute insects.
    Unless you have perfect vision you would need a hand lense to ID red spider.
     
  15. daitheplant

    daitheplant Total Gardener

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    Pete, even people of our age can see Red Spider Mite with the naked eye. And certainly the webs.
     
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