Natural control of pests and disease

The best thing I've done for pest control is planting flowers which attract predatory insects all over the garden. Dill, coriander, fennel, alyssum, gem marigolds, yarrow, cosmos, poached egg plants, phacelia... Now every year we get ladybirds, hoverflies and parasitic wasps visiting the greenhouse to control aphids. Gem marigolds and alyssum are my favourites because they are easy to grow and flower all summer.

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