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The caterpillars of both the small and large cabbage white butterflies are are the two culprits. The first is pale green with a body up to 2.5cm long, the second is bigger at 4cm and is yellow with black markings. The adult butterflies lay eggs
Follow Monty Don's video advice on planting summer cabbages, with advice on avoiding cabbage root fly.springMore advice on growing vegetablesGrowing courgettesPlanting broccoliGrowing carrots in a containerCrop rotationBrowse a variety of vegetable
Learn how to plant spring cabbages by following Monty Don's video demonstration, with tips on soil preparation and planting depths, as well as a special technique to keep pigeons at bay.OctoberMore advice on growing brassicasHow to plant brassicas
The culprit is the flea beetle, which, like its namesake, jumps away when disturbed. The small, shiny, black, brown or blue beetles emerge in April and May, after winter hibernation, ready to start feeding. Eggs laid near host plants hatch in late-summer. The beetles feed for a f...