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Broadleaf cattail · Typha latifolia

What are these small bugs on my broadleaf cattail?

Broadleaf cattails can occasionally attract aphids, especially during dry spells or if the plant is stressed. These small insects cluster on the stems and suck the sap, which can weaken the plant. Check the undersides of the leaves and the stems for small, soft bodied insects.

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

Check these first

  1. Look closely at the stems for clusters of tiny bugs.
  2. Check for sticky honeydew on the foliage.
  3. Inspect nearby plants to see if the infestation is spreading.

Likely causes

  1. Aphid infestation

    Most likely

    How to tell: You see clusters of tiny green, black, or white insects on the stems or new growth. You might also notice a sticky residue called honeydew on the leaves.

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

  2. Plant stress

    Possible

    How to tell: The plant is not getting enough sunlight or the water quality is poor, making it a target for pests.

    What to do: Move the plant to a spot with full, direct sun. Ensure the water is fresh and not stagnant.

Pests on other plants

Find out what's wrong with your broadleaf cattail

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 aphids are usually manageable, but you should act if you see them covering large sections of the plant. Serious infestations can stunt growth.

Stopping it coming back

Keep your cattail healthy with plenty of direct sunlight and consistent water. Healthy plants are much better at resisting pest attacks.

Broadleaf cattail: pests? Check yours with a photo

Every plant is a little different. Take a photo of your broadleaf cattail 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 cattail?
Usually not, but they can weaken the plant and make it look unsightly. It is best to treat them as soon as you notice them.
Can I use chemical pesticides?
Avoid harsh chemicals, especially if your cattail is in a pond with fish or wildlife. Stick to water sprays or organic insecticidal soaps.

Guides to these causes

More problems with Broadleaf cattail

Back to the Broadleaf cattail 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.