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Do these Tom plants have a disease?

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  • Do these Tom plants have a disease?

    Hi,

    this baby Tom plant of mine looks like it has a disease, I’ve been very lucky and never come across diseases on my toms before.
    But this looks terrible compared to my other toms. What could be wrong with it? If I have to get rid of it, do I get rid of the soil too?

    There’s also picture 2 this is another plant which looks very healthy but this one leaf has these markings, is this a disease on plant 2 as well?

  • #2
    I don’t think it’s disease,the first plant looks like it’s got a bit cold. Lower leaves do look rough compared to the new growth. The bottom leaves will feed the new leaves if they need the nutrients. If the new leaves look healthy it’s a good sign.
    Last edited by Jungle Jane; 12-06-2022, 05:47 PM.
    Location : Essex

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    • #3
      The beige/white bits are leaf scorch.
      Usually this is caused by intense sunlight, especially if the plants were moved from somewhere less bright (like a windowsill, perhaps) to somewhere very bright (like a sunny greenhouse or in full sun outside). Once the leaves get used to the strong sun and harden up it shouldn't happen again, although the damaged leaves will never recover.
      Leaf scorch can also be caused by an excess of various salts in the growing medium (usually caused by an excess of fertiliser), but since the newer leaves look healthy that's unlikely to be the cause in your case.

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      • #4
        Originally posted by ameno View Post
        The beige/white bits are leaf scorch.
        Usually this is caused by intense sunlight, especially if the plants were moved from somewhere less bright (like a windowsill, perhaps) to somewhere very bright (like a sunny greenhouse or in full sun outside). Once the leaves get used to the strong sun and harden up it shouldn't happen again, although the damaged leaves will never recover.
        Leaf scorch can also be caused by an excess of various salts in the growing medium (usually caused by an excess of fertiliser), but since the newer leaves look healthy that's unlikely to be the cause in your case.
        Ahh I see, to save me starting another thread. I’m a bit concerned about my courgette. It’s producing fruits, it’s in the GH. But this week I noticed this on just one leaf, is it a disease? New growth looks fine. Also 2 of my courgettes was yellow at the end

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        • #5
          I'm fairly sure that's not a disease, as courgette diseases don't usually show those sorts of symptoms (not that there are many courgette diseases, anyway).
          If that's an old leaf and the new leaves look healthy they I wouldn't worry about it too much. If you're concerned, you can always just remove that leaf and throw it away. Any bacterial or fungal leaf diseases always spread externally, so removing the affected parts can greatly slow or even halt the disease. Only viral diseases spread internally, and that's definitely no virus.

          When you say the courgettes were yellow at the end, do you mean the blossom end? And did they look normal apart from the yellow (normal size and shape)? Maybe you could post a picture?

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          • #6
            The glass got left on a big seedling tray with a few left overs in it on a sunny day with no aircraft trails.
            It is a good example of heat damaged plants.
            Click image for larger version

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            Near Worksop on heavy clay soil

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