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What is eating my viburnum opulous?

My vibur opulous is covered in these. is it a gonna? 


If you can't zoom they are like tiny black caterpillars. Every hole is like a sieve. 


  • Ladybird4Ladybird4 Posts: 36,210

    They are sawfly larvae. Squish them.

    Cacoethes: An irresistible urge to do something inadvisable
  • Bee witchedBee witched Posts: 1,173

    Hi Peanuts 3,

    Try using a spray of diluted Neem oil ... it is totally organic.

    See this link for further info.

    and this one for how to make it.

    I use it as soon as growth starts in April and I drench the foliage. Any spare solution goes onto the soil below as the earthworms are supposed to love it. I repeat spray every few weeks.

    Neem is best used preventatively .... but will work on pests that have already arrived. It  does not hurt beneficial insects. Only chewing and sucking insects are affected. The main reason is that insects need to ingest the neem oil to be affected, and beneficial insects don't eat your plants. However, you can still kill beneficial insects if you smother them with neem oil, so I tend to spray late evening to be safe.

    It does stink a bit ... but is easy to mix up and apply.

    I got mine off ebay .... wasn't expensive for a big bottle which will last ages. At room temperature it is solid, but goes liquid again within a couple of hours in the airing cupboard.

    Worth a try .... also seems to work well for lily beetle and aphids.

    Gardener and beekeeper in beautiful Scottish Borders  

    A single bee creates just one twelfth of a teaspoon of honey in her lifetime
  • nutcutletnutcutlet Posts: 27,162

    It's not a gonna. Pests don't usually kill the food crop. They'll need it next yearimage

    In the sticks near Peterborough
  • Peanuts3Peanuts3 Posts: 759

    I thought sawfly larvae were stripey, I had some munching through my roses last year....

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