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11 to 13 of 13 results

Cabbage white caterpillars

By Gardeners' World on 18/10/2011 14:35:19

with the biological control Steinernema carpcapse.With heavy infestations, use an insecticide based on pyrethrum (only use once a season on crops).brassicas and nasturtiumsearly spring to autumnCommon problems when growing vegetables


Courgette rot

By Gardeners' World on 18/10/2011 11:04:39

Poor early-summer weather, with a prolonged cold spell, and few insects results in poor pollination. This means courgettes fail to develop, and they quickly rot on the plant. However, this is only a temporary problem, and once the weather starts


Sooty mould

By Gardeners' World on 19/10/2011 14:13:13

and greenhouse plantsspring, summer, autumn, winter More common plant problemsAphidsMagnesium deficiencyRustScale insects


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