Hampshire, United Kingdom

I have just dug a couple of leeks, a bit early, but they were wanted for something happening in the kitchen. One of them was almost unusable as it had been `tunnelled` by some small green caterpillars, which I think I have identified from a book as the caterpillars of the Leek Moth. Has anyone any experience of the use of a `safe` insecticide, which has been successful rescuing plants in the past? I suspect much of my crop will be past saving, but they don`t look too bad, so some may be only slightly affected at the moment.

• 7 Sep, 2011