Have you ever bought ladybird larvae to eat the greenfly on your roses or nematodes to get rid of slugs? Biological control is the perfect way to solve some problems. This year for the first time I’ve invested in some predatory mites that feed on compost fly grubs. Have you noticed those little black flies that infest the compost in your house plants? Those are sciarid flies and their grubs destroy seedlings and the roots of potted plants. But they can also attack snail eggs and, from my point of view, they are a potentially a big problem. So I bought some Hypoaspis miles – there’s a name to conjure with! (www.defenders.co.uk) They came through the post in a sprinkler pack that I shook over the compost and now I just have to sit back and wait for nature to take its course.
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