Management of Carrot fly:-
Damage –
- The flies lay their eggs around the developing carrots.
- Crop damage is caused by the creamy-yellow larvae (maggots) feeding on the outer layers of the carrot root. In autumn, they may penetrate further into the root.
- The legless larvae are up to 10 mm in length.
- Foliage becomes wilted and discoloured.
- Leaves turn rusty red to scarlet with some yellowing. Rusty-brown tunnels are seen under the outer skin of mature roots.
Management –
- Maintaining a 3–5-year crop rotation of all crops within the carrot family (Apiaceae), and locating these crops as far away as possible from the previous year’s crop.
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Row cover is another method of exclusion.
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Spray profenophos 50 EC @ 400 ml/acre.
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Spray quinolphos 25 EC @ 300 ml/acre.
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