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Blackfly control without harming beneficial insects

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  • Lizzie27Lizzie27 Posts: 12,494
    I thought that,  so sowed nasturtiums "Black Velvet". The only problem is that they show no signs of flowering yet and the blackfly are ignoring them and are happily swarming over the runner beans above!
    North East Somerset - Clay soil over limestone
  • Daaaamn. I just bought some. Oh well, worth a shot!
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