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  • Onion fly

    Is there any treatment or method to get rid of onion fly, while writing this I have thought that possibky a flame gun might help though not 100% sure, has anyone tried this and if so did it work, or has anyone got another method to use
    it may be a struggle to reach the top, but once your over the hill your problems start.

    Member of the Nutters Club but I think I am just there to make up the numbers

  • #2
    Out of interest - what sort of area are you thinking of treating?

    If it’s pots or a small area then I have heard of people microwaving the soil to kill off pests.
    Remember they can spread from other areas though…

    "Nicos, Queen of Gooooogle" and... GYO's own Miss Marple

    Location....Normandy France

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    • #3
      It is difficult because you could treat your whole plot but one could fly over from a nearby plot in May & lay eggs next to your onions,unless you cover them with fine net?
      There are the nematodes you could buy,to water around the plants between April-July,soil needs to be at least 12 degrees
      .
      https://www.nematodesdirect.co.uk/ne...-own-nematodes

      Then,if there were any maggots near the onions laid by a travelling fly,the nematodes would destroy them. Netting seems a less expensive way that I’d go,if used on an area that hasn’t grown alliums.
      Location : Essex

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      • #4
        The area is in a raised bed and the fly has been there for the last two years, so if I tried microwaving the soil I think OH would object but I didn't know there were nematodes for them I will need to look into those
        it may be a struggle to reach the top, but once your over the hill your problems start.

        Member of the Nutters Club but I think I am just there to make up the numbers

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