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Wood sorrel · Oxalis

How do I get rid of pests on my oxalis?

Aphids are the most common pests for oxalis, often hiding on the tender new growth. Check the undersides of the leaves and the stems for these tiny insects.

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

Check these first

  1. Inspect the undersides of the leaves.
  2. Look for sticky residue on the stems.
  3. Check for fine webbing near the base.

Likely causes

  1. Aphids

    Most likely

    How to tell: You will see small green or black insects clustering on the stems and new leaves. They often leave behind a sticky residue.

    What to do: Wash the plant gently with a soft cloth and mild soapy water. For larger infestations, use a neem oil spray once a week until they are gone.

  2. Spider Mites

    Possible

    How to tell: This is less common for oxalis, usually caused by very dry indoor air. You might see fine webbing between the stems.

    What to do: Increase the humidity around your plant with a pebble tray. Wipe the leaves down with water to remove the mites.

Find out what's wrong with your wood sorrel

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

Pests are serious if they start causing the leaves to curl or turn yellow. Act quickly to prevent them from spreading to your other plants.

Stopping it coming back

Keep your plant healthy with proper light and water, and wipe the leaves occasionally to keep them clean.

Keep your wood sorrel healthy from here

Save your plant in Pocket Botanist and you get care reminders timed for this plant, plus a care history that shows what worked. Identification and a health check are free.

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Questions people ask

Can I use household soap to kill aphids?
Use a mild dish soap diluted in water. Avoid harsh detergents that might burn the delicate leaves.
Will these pests kill my oxalis?
If left untreated, they can weaken the plant significantly. Catching them early makes them very easy to manage.

More problems with Wood sorrel

Back to the Wood sorrel guide

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