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Sulphur candle in polytunnel?

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  • #1

    Sulphur candle in polytunnel?

    Hi there, I'm getting conflicting advice about this so I thought I'd ask the experts (that's all you grapes)

    Can I set off a sulphur candle in my empty polytunnel? I wouldn't normally even contemplate it, but I had a big pest problem this year and would like to erradicate the over-wintering RSM and whitefly if I can. I always scrub it out anyway, but I think drastic action might be called for

    Anyone know what the dilute sulphuric acid does to the particular plastic used for tunnels?

    Thanks in advance

    KVP
    Growing in the Garden of England
    Tags: None
  • #2
    I think a sulphur candle would be wasted in a tunnel unless it is a small one. I use Provado for red spider and thrips but am hoplng the severe winter we are having will kill of any eggs overwintering

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    • #3
      Ken smith is right, this good cold snap should kill of a lot of bugs and diseases but a Sulphur candle will make sure. Just check the are it can be used for because I have a sneaky suspicion you will need more than one sulphur candle.

      Good luck

      JJ
      The link to my old website with vegetable garden and poultry photographs


      http://www.m6jdb.co.uk

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      • #4
        i have a sulphur hotbox, was about a tenner on ebay .... you put sulphur crystals in and leave it plugged in for 4 hours, and you can even use it when you're growing crops, .... although i would only use it if you get a severe problem, as it kills good bugs too xx

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