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are your best allies. Ladybirds can be bought as a biological control, and you can also buy ladybird houses to encourage these helpful creatures to take up residence in your garden. They need time to tackle the problem, so don't expect them to hoover up

insects - which have a fluffy white covering - carry on feeding on the sap, prolonging the problem. Prolific breeding in summer means the symptoms don't disappear.Young, winged, sap-feeding insects attack young bay foliage, discolouring and distorting it

one edge. Brush the clean edge of the card over the top of your plants - when the beetles hop into the air they'll stick to the grease. Repeat as necessary.Use pyrethrum chemical controls, or spray seedling brassicas with a thiacloprid insecticide

above 10 celsius in the greenhouse you can use a biological control, such as the parasitic wasp, Encarsia formosa, which attacks the juvenile forms of whitefly.Sprays with products containing thiacloprid, which is absorbed by the plants (causing