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Carrot fly

Carrot fly - a frequently asked question

Question ...

I am quite new to gardening and have started to harvest my first carrots, only to find they are riddled with holes. They are no good at all for the table. It seems as though something has been eating them and a friend told me it was carrot root fly. What should I do about the problem and will it come back next year?

Answer ...

Carrot fly larvae tunnel through the storage root while underground. They can often reduce the carrot to a sorry mess, quite unsuitable for the kitchen. However, you can often salvage something to eat by cutting away the damaged areas.

The best protection from this pest is to cover drills with horticultural fleece or a fine mesh netting immediately after sowing. Try a carrot variety that has some resistance to this pest, like

Garden Organic members can see our factsheet about Carrot fly for more information.

Access to this factsheet requires members' password.
Find out more about Garden Organic membership

The carrot variety 'Resistafly F1' is available from the Organic Gardening Catalogue.


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