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Common sneezeweed · Helenium autumnale

What are these bugs on my Common sneezeweed?

Aphids are the most common pests for sneezeweed, often clustering on new, tender growth. They suck the sap and can cause the plant to look weak or stunted.

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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 closely at the new growth tips for small clusters of insects.
  3. Check for sticky residue on the leaves.

Likely causes

  1. Aphid Infestation

    Most likely

    How to tell: You will see tiny green or black insects clustered on the tips of stems and undersides of leaves.

    What to do: Spray the aphids off with a strong stream of water from your hose. If they persist, apply insecticidal soap or neem oil directly to the affected areas.

Pests on other plants

Find out what's wrong with your common sneezeweed

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

Take action as soon as you see them, as they multiply quickly. A few aphids are usually manageable, but a heavy infestation can damage the flowers.

Stopping it coming back

Check your plants weekly for early signs of insects. Encourage beneficial predators like ladybugs in your garden.

Common sneezeweed: pests? Check yours with a photo

Every plant is a little different. Take a photo of your common sneezeweed 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

Will aphids kill my sneezeweed?
They rarely kill the plant, but they can weaken it and spread viruses. It is best to remove them early.
Can I use dish soap to kill them?
A mild solution of dish soap and water can work, but insecticidal soap is safer for the plant foliage.

Guides to these causes

More problems with Common sneezeweed

Back to the Common sneezeweed 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.