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Blight on tomato plants [greenhouse]

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  • Blight on tomato plants [greenhouse]

    Was wondering what is causing tomato blight in my greenhouse.
    I give a number of my neighbours as well as the local hospice plants about 150-200 plants in total and I am the only one that has any bother with them.
    Any help would be greatly appreciated
    Bob.

  • #2
    Getting more airflow in the greenhouse helps me, I leave the door open day and night in summer.

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    • #3
      Yes, good airflow & watering at the base avoiding foliage getting wet. Also, don't compost affected plants - get rid or destroy them.
      Another happy Nutter...

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      • #4
        Do you water from collected rainwater?
        I have heard that the spores can be picked up in raindrops.
        Just a thought as I am no expert as far as tomatoes are concerned.
        "Nicos, Queen of Gooooogle" and... GYO's own Miss Marple

        Location....Normandy France

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        • #5
          Is it definitely blight & not magnesium deficiency? If it is blight,I wouldn't reuse that compost for tomatoes next year,plant something else in it,some spores can survive in the compost. Some weeds & other nightshades can be a host plant for blight too. Try not to get any of the leaves wet when watering,they're a big invitation for fungi & bacteria.
          Location : Essex

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          • #6
            Is it Blight or is it Botrytis? I think it is much easier to get the latter, through high humidity and lack of airflow. I think real blight is quite rare in greenhouses.
            Can you please post some pictures, including some closeups.

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            • #7
              Thank you for your help. Will try and post some pictures. Cut off most and threw out the rest.
              Bob

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