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Carrot fly can make a large proportion of carrots and allied vegetable crops inedible.
Carrot fly is a small black-bodied fly whose larvae feed on the roots of carrots and related plants, such as parsnip, parsley, celery and celeriac.
There are no pesticides available for home garden use against carrot fly.
Biological control suppliers (Adobe Acrobat pdf document listing biological control and suppliers)
RHS research has compared different heights of barriers and complete covering with netting as methods of control of carrot root fly. The results have been interpreted and have informed the advice given on control on this page: how to protect your carrots
Carrot fly research - Blog part 1
Carrot fly research - Blog part 2
Carrot fly research - Results
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The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.