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White vervain · Verbena urticifolia

What are the bugs on my White vervain?

Pests are less common for this plant and usually appear when the plant is stressed by poor air circulation or improper watering. Check the undersides of the leaves and the stems for small insects or webbing.

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

Check these first

  1. Examine the undersides of the leaves with a magnifying glass.
  2. Check for sticky residue on the leaves.
  3. Ensure the plant has good airflow to prevent fungal and pest issues.

Likely causes

  1. Aphids

    Most likely

    How to tell: Small green or black insects cluster on the new growth and flower buds.

    What to do: Spray the plant with a steady stream of water to knock them off. Use insecticidal soap if the infestation persists.

  2. Spider Mites

    Possible

    How to tell: Fine webbing appears between the leaves and the foliage looks speckled or dull.

    What to do: Increase humidity around the plant to discourage mites. Wipe the leaves with a damp cloth or use neem oil to treat the infestation.

Pests on other plants

Find out what's wrong with your white vervain

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

A few bugs are usually manageable, but you should worry if the leaves start curling or turning yellow due to sap loss. Treat immediately if you see significant webbing.

Stopping it coming back

Keep the plant healthy with proper watering and ensure it has enough space for air to circulate around the leaves.

White vervain: pests? Check yours with a photo

Every plant is a little different. Take a photo of your white vervain 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 these bugs harmful?
Yes, they suck the sap from the plant, which weakens it and can stunt its growth. It is best to remove them as soon as you see them.
Can I use household soap to kill them?
Use only mild, non-detergent soap diluted in water. Harsh chemicals can burn the leaves of your vervain.

Guides to these causes

More problems with White vervain

Back to the White vervain 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.