Carrot root fly is a troublesome pest but both Flyaway and Resistafly have partial carrot fly resistance, both contain low levels of chlorogenic acid, a chemical which the carrot fly larvae of needs to survive. This means that they appear to be unattractive to the fly and even if your crop is attacked the larvae will soon die after doing relatively little damage. Height: 30cm (12). Spread: 15cm (6). Collection comprises one pack each of: Carrot 'Resistafly' - A 'Nantes' type with good early vigour, a smooth skin and excellent core colour. The uniform 15cm (6) roots store particularly well. Carrot 'Flyaway' - A naturally very sweet tasting variety with smooth skinned, blunt ended roots and a good orange skin and root colour. Carrot 'Nantes 2' - This fast maturing selection is ideal for early sowings under glass in February for your first crop of the year.