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  1. #1
    newbieveggie's Avatar
    newbieveggie is offline Sprouter
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    Default Black fly on my broad beans

    Hi there
    I have just spotted black fly on my broad beans. I have planted some sacrificial nasturtiums (sp ?) but so far they are devoid of blackfly. I want something organic, does washing up water work ? I dont want soapy beans

  2. #2
    Dynamo's Avatar
    Dynamo is online now Rooter
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    I don't think that having a sacrificial crop is a good idea regarding aphids. You only need one or two to land on a plant and it will become infested from their offspring.

    The advice I've been given regarding Blackfly is to pinch off the parts of the plant, usually the top, and leave the rest. The blackfly shouldn't hurt the more established parts of the plant.

  3. #3
    MagicLady is offline Seedling
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    I've got them on my Runner Beans but they are on the stems and underside of the leaves, fairly low down so I wouldn't be able to pinch them out. Would they be ok if left?
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  4. #4
    newbieveggie's Avatar
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    Hmm I was hoping not to nip out the tips as they are only about 14" high and they are reputed to grow to 36". They are broad bean express. They have lots of flowers on them, does that mean they wont grow any higher then ? Im a complete novice on broad beans as you can prob tell.

  5. #5
    Flummery's Avatar
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    I use water with a small amount of washing up liquid and squirt it all over them, squishing with my fingers too. In this way you can wash off/demolish the blackfly. You often need to do it sevral times. I've saved broad bean plants like this. Spotting them early on helps tremendously.
    Whoever plants a garden believes in the future.

    www.vegheaven.blogspot.com Updated March 9th - Spring

  6. #6
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    As Flummery I've just jetted mine with washing up liquid mix and managed to get some with the garden hose on high pressure!

  7. #7
    Flummery's Avatar
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    Why does the title of this thread make me want to sing "But I'm still rolling along"?

    I know, I'm barmy.
    Whoever plants a garden believes in the future.

    www.vegheaven.blogspot.com Updated March 9th - Spring

  8. #8
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    My lottie neighbour suggested that I tried a washing up liquid solution on my broad beans, as the allotment seems to be a magnet for quite a few predators of all sorts.

    I tried this a few days ago and it cleared half of the beans almost completely. A second dose yesterday and one more at the weekend and I think it will be easily as good as any nasty pesticides.

    I assume that it is not as bad to use as pesticides........is it?

    What a great idea - now why didn't I think of that before?

    Ann

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