Carrot fly: how to control this pest in your vegetable garden? (Page 3 ) | March 22, 2025

It’s also a good idea to hang insect netting as soon as the vegetables emerge from the ground. The netting or protection should remain in place until October. Mulching around the carrots with wormwood, rosemary, or lavender can help keep carrot flies away. These plants give off an unpleasant odor.

Finally, you can prevent contamination by spraying undiluted onion or garlic fertilizer on the roots twice a week. This will also help fertilize the soil and care for plants and vegetables.