Climbing Hydrangea Infestation

Discussion in 'HortForum' started by thehappygardener, May 17, 2010.

  1. thehappygardener

    thehappygardener Member

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  2. Ron B

    Ron B Paragon of Plants 10 Years

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    Weevils, since they are dark maybe Black vine weevil.
     
  3. nic

    nic Active Member 10 Years

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    I completely misread the title of this thread and clicked on it with joy, as we are infested with climbing hydrangea; it took my neighbour and me an entire weekend to clear enough of it so the man could mend the fence it was destroying. We didn't get it all, I saw it when I was hanging out washing, and came indoors and hid.

    Looks like vine weevils to me. If you have that many adults you may have a problem, their grubs are hugely destructive. There is a nematode treatment, to be applied about now, depending on frosts and such. The old gardening books recommend shaking the branches over a sheet at night (the adults are nocturnal) and destroying the collection. A bucket would do on a small plant, then topped up from the kettle. There is no kind way. They aren't speedy, so search and destroy may be the way. I have no idea what they do during the day, lurk in dark corners, plotting, I expect.
     

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