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Recommended treatment for sawfly

As I live in France can anyone recommmend a treatment for sawfly, it is obviously called something different here but cannot find the translation


  • B3B3 Posts: 26,573
    I pick off the leaves with the larvae and chuck them on the grass away from the plant for the birds to eat.
    In London. Keen but lazy.
  • CrazybeeladyCrazybeelady Posts: 752
    They're always very visible on my roses so I would agree with B3, just chop off the bits where they are gathered together eating. 
  • bertrand-mabelbertrand-mabel Posts: 2,533
    Possibly "Mouche à scie".

  • floraliesfloralies Posts: 2,529
    Tenthredes @suzannejms34FNVGJUVt I don't use pesticides, just pick them off and put on the bird table.
  • FireFire Posts: 17,403
    edited July 2022
    I squish them. I'm not sure if I just haven't been hunting as much but they seem less bad in my garden this year.  I do have armies of sparrows in three nests around the garden. In the sunlit uplands of my imagination, they are happily taking advantage of the bonanza of protein. They don't seem remotely interested in the blackfly.

     I find saw fly are very active at night, so going around with a torch, you can often spot the wriggling.
  • AthelasAthelas Posts: 870
    edited July 2022
    Same here @Fire, there doesn’t seem to be as many this year compared with 2021.

    I squish the adults, they stay quite still and are easy to catch. If I see any skeletonised leaves or a scar on a stem where eggs were laid, I look at the underside of the leaves lower down and can usually find the larvae there — I cut off the affected leaves and cut each tiny worm in half (bit fiddly I know, but I like to make sure they are dead) and leave them on the ground.
    Cambridgeshire, UK
  • FireFire Posts: 17,403
    Me too.
  • CrazybeeladyCrazybeelady Posts: 752
    I'm such a sap, I can't bring myself to kill them. The only things I can squish are aphids. I'll cut the infested leaves off and put them in my green bin, or sometimes I just leave them! My roses are big enough to spare a few leaves!
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