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Thread: Watering Greenhouse Tomatoes with Rainwater - Blight?

  1. #1
    vegelady is offline Seedling
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    Default Watering Greenhouse Tomatoes with Rainwater - Blight?

    I have recently moved and am finally able to get a small greenhouse, which is on order and arriving March. I grew tomatoes successfully outside for years in my garden, then blight hit and although i tried blight resistant varieties I didnt have much success. In Grow your Own magazine for February it says blight is carried in rainwater but I have also read you should harvest rainwater to water your crops in the greenhouse. Wont the harvested rainwater give my greenhouse tomatoes blight? or does the virus die when in a water butt I also use rainwater to water new potatoes in tubs Excuse my ignorance but I love new potatoes and tomatoes and I really do not want to introduce blight into my greenhouse. Thank you, Alison

  2. #2
    jackarmy's Avatar
    jackarmy is offline Early Fruiter
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    Blight can only live on living tissue, so i would say No, there is no threat from my understanding.
    Blight spores are carried by the wind and can attatch themselves to the tom/potato plant if they are wet, so rain does help blight but does not carry it as such.
    Last edited by jackarmy; 10-01-2019 at 04:44 PM.
    veggiechicken and burnie like this.

  3. #3
    vegelady is offline Seedling
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    Oh thank you, that relieves my mind and makes perfect sense. I always thought they were carried in the air it was the magazine saying they spread with rainwater that threw me. I cant wait to get started, weather is so cold here now!

  4. #4
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    veggiechicken is offline Warning!! Contains Nuts
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    I always water my GH toms with rainwater - so sleep easy.
    Make 2019 the Year of Random Seed sowing
    @realveggiechicken

    All we are saying is..........Give seeds a chance.

  5. #5
    Bren In Pots's Avatar
    Bren In Pots is offline Bad Hair Day
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    I prefer to use rain water for all my crops if I can rather than using mains water.
    Bren

  6. #6
    vegelady is offline Seedling
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    thank you for your comments, Ill go ahead with my plans

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