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Creeping soft grass · Holcus mollis

Are there pests on my Holcus mollis?

Pests are less common on creeping soft grass, but you might occasionally see rust fungus during humid weather. Check the leaves for orange spots first to confirm if it is rust.

Not sure it's this? Check a photo of your plant for free

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

Check these first

  1. Look closely at the leaves for orange spots.
  2. Inspect the undersides of leaves for tiny bugs.
  3. Check for sticky residue on the foliage.

Likely causes

  1. Rust Fungus

    Most likely

    How to tell: You will see small orange or reddish pustules on the leaf surfaces. These spots are a fungal infection common in damp, humid conditions.

    What to do: Remove and discard the affected leaves immediately to stop the spread. Improve air circulation around the plant and avoid getting water on the foliage when you irrigate.

  2. Aphids

    Possible

    How to tell: Tiny green or black insects cluster on the tender new growth. You might also notice a sticky residue on the leaves.

    What to do: Gently spray the plant with a stream of water to knock the aphids off. If they persist, use a mild insecticidal soap once a week until they are gone.

Pests on other plants

Find out what's wrong with your creeping soft grass

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

Worry if the rust covers most of the plant or if the leaves start dying back rapidly. It is normal to see a few spots during very wet, humid weeks.

Stopping it coming back

Water at the base of the plant to keep the leaves dry and ensure good airflow between plants.

Creeping soft grass: pests? Check yours with a photo

Every plant is a little different. Take a photo of your creeping soft grass 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

Is rust fungus harmful?
It can weaken the plant if left untreated. Removing the infected parts quickly usually keeps the plant healthy.
Can I use neem oil for pests?
Yes, neem oil is effective against many common pests. Apply it in the evening to avoid burning the leaves in the sun.

Guides to these causes

More problems with Creeping soft grass

Back to the Creeping soft grass 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.