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Garden sorrel · Rumex acetosa

Why are there tiny bugs on my garden sorrel?

Garden sorrel is a favorite snack for aphids, which are small insects that cluster on new growth. They suck the sap from your plant, causing it to look weak or stunted. Check the tender tips and undersides of leaves for these tiny visitors.

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

Check these first

  1. Look closely at the tender new growth for clusters of tiny bugs.
  2. Check the undersides of the leaves for sticky residue.
  3. Examine the soil surface for slime trails.

Likely causes

  1. Aphid infestation

    Most likely

    How to tell: You will see clusters of tiny green, black, or white insects on the undersides of leaves or on new stems. The leaves may also look curled or sticky from the honeydew they leave behind.

    What to do: Blast the aphids off with a strong stream of water from your hose. If they persist, apply insecticidal soap or neem oil every 5 to 7 days until they are gone.

  2. Slugs or snails

    Possible

    How to tell: You will see irregular holes in the leaves and slimy trails on the soil or foliage. They usually feed at night and hide during the day.

    What to do: Handpick them off the plant in the evening or early morning. Use copper tape around the base of your pots or set out beer traps to lure them away.

When to worry

A few aphids are normal, but if they cover the entire plant or the plant stops growing, you must act. Heavy infestations can cause the plant to wilt and die.

Stopping it coming back

Encourage beneficial insects like ladybugs to visit your garden, and keep the area around your sorrel free of debris where pests hide.

Not sure which one it is? Photograph your garden sorrel.

This page lists the usual causes. Pocket Botanist looks at your actual leaf 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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Questions people ask

Are aphids harmful to me?
No, aphids are not harmful to humans. They only damage the plant by draining its sap.
How often should I spray for aphids?
If you use insecticidal soap, apply it every 5 to 7 days for about 2 to 3 weeks. This breaks the life cycle of the pests.

More problems with Garden sorrel

Back to the Garden 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.