Answer: Sounds as though onion maggots have found your plants. The adults are flies that lay eggs at the soil surface. When the eggs hatch, the larvae burrow into the fleshy part of your leeks and feed until it's time for them to pupate and turn into flies.<br><br>Try planting your leeks in a different part of the garden next year and covering the whole row with Reemay or some type of floating row cover to exclude the adult flies. By excluding the adults, you'll break the cycle and subsequent crops should be damage-free.
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