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Wild Carrot · Daucus carota subsp. carota

What is eating my wild carrot roots?

If your wild carrot looks stunted or the roots are decaying, you likely have carrot rust fly larvae. These pests tunnel into the roots and cause significant damage. Check the roots for small, rusty colored tunnels.

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pests on a plant
Photo: Jules Verne Times Two, CC BY-SA 4.0

Check these first

  1. Pull up a plant to inspect the root for tunnels.
  2. Look for tiny insects on the underside of leaves.
  3. Check for wilting despite moist soil.

Likely causes

  1. Carrot Rust Fly

    Most likely

    How to tell: The leaves may turn yellow or wilt, and the roots will show brown, winding tunnels. You might see small, white maggots inside the root tissue.

    What to do: Harvest the affected plants immediately to prevent the larvae from completing their cycle. Use floating row covers early in the season to prevent the adult flies from laying eggs.

  2. Aphids

    Possible

    How to tell: You will see tiny, soft bodied insects clustered on the undersides of leaves or on new growth. They often cause leaves to curl or yellow.

    What to do: Spray the plant with a strong stream of water to knock the aphids off. If the infestation is heavy, use an insecticidal soap according to the label instructions.

Pests on other plants

Find out what's wrong with your wild carrot

The list above covers the usual causes. Pocket Botanist looks at a photo of your actual plant and tells you the likely cause, how serious it is, and what to try first. Identification and a health check are free.

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When to worry

If you see tunnels in the roots, the plant is likely compromised and should be removed. Minor aphid presence is usually manageable with water sprays.

Stopping it coming back

Use row covers to block pests and rotate your planting site each year.

Wild Carrot: pests? Check yours with a photo

Every plant is a little different. Take a photo of your wild carrot and Pocket Botanist tells you which cause is most likely, how serious it is, and what to try first. A few checks a day are free. Save the plant and you get care reminders timed for it.

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Questions people ask

Are the roots safe to eat if they have tunnels?
You can cut away the damaged parts, but the texture will be poor. It is best to discard roots that are heavily tunneled.
How do I stop carrot rust fly next time?
Cover your plants with fine mesh netting as soon as they sprout. This prevents the flies from reaching the soil to lay their eggs.

Guides to these causes

More problems with Wild Carrot

Back to the Wild Carrot guide

This article was generated with AI on from the plant’s care profile and is general information, not horticultural advice. Read about how we build these guides.