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  • Leek Disaster

    My leeks have failed again. This has happened two years in a row. Before then they were large, healthy and show quality. This year everything was fine until the end of August when the leaves started to turn yellow/white and go limp. When I returned from holiday at the end of September this had happened - see picture. Any ideas on what the problem could be?
    Attached Files

  • #2
    Looks like either Leek moth or Allium leaf miner.

    Leek moth / Royal Horticultural Society

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    • #3
      Maybe it's white rot. What are the roots like?
      My gardening blog: In Spades, last update 30th April 2018.
      Chrysanthemum notes page here.

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      • #4
        If its leek moth then cover them from seedlings to harvest with fine enviromesh and you will have undamaged leeks. I have this problem which is now sorted with covering them
        my plot march 2013http://www.youtube.com/watch?v=SvzqRS0_hbQ

        hindsight is a wonderful thing but foresight is a whole lot better

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        • #5
          I would have thought rot of some sort.
          Gardening requires a lot of water - most of it in the form of perspiration. Lou Erickson, critic and poet

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          • #6
            Roots look O.K. bit I think the plant has stopped growing - very small.
            Attached Files

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            • #7
              Looks like allium leaf miner. You can cut your leeks down and they will regrow. Did this last year when a few of mine were attacked. Look deep inside the centre of the leeks, are there any grubs?

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              • #8
                One of the allium pests anyway - you can see where the foliage has been munched, and allowed the tops to rot off. I've had it here for the last 2 years

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                • #9
                  If its Allium Leaf Miner, I guess the only way to healthy leeks next year is to cover them with net or fleece?

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                  • #10
                    Cut them down to ground level Garvey, and cover with fleece or enviromesh. The roots should carry on growing and produce new foliage.

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                    • #11
                      Leaf miner is usually active twice a year. Mar/april and Oct/nov... I've had trouble with it and now cover my leeks, the grubs leave a pinky coloured furrow down the main body of the leek and the grubs are like an orangy coloured grain of rice ...
                      S*d the housework I have a lottie to dig
                      a batch of jam is always an act of creation ..Christine Ferber

                      You can't beat a bit of garden porn

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                      • #12
                        Having seen the second photo I revise what I said. Yes, cut them down and most of them will regrow. I cut off the foliage of mine three times as they grow.
                        Gardening requires a lot of water - most of it in the form of perspiration. Lou Erickson, critic and poet

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                        • #13
                          Originally posted by Garvey View Post
                          Roots look O.K.
                          Look inside the leaves of your plants, and I'm sure you'll find a little maggot. You now need to grow your leeks under mesh, like a lot of us do now.

                          Ours were attacked this year before we meshed them: we cut the plants down to the soil surface, leaving the roots in place, and they've grown back into 6" tall leeks and still growing
                          All gardeners know better than other gardeners." -- Chinese Proverb.

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