Are aphids harmful to my plant?

Yes, they suck the sap from the plant, which weakens it and causes the leaves to curl and distort. They can also spread viruses between plants.

Can I use neem oil for the aphids?

Neem oil is an effective treatment for aphids. Apply it in the evening to avoid burning the leaves in the sun.

Lesser stitchwort: curling leaves, causes and fixes

Check these first

Inspect the undersides of the leaves for tiny bugs.
Check if the plant is sitting in direct, harsh sunlight.
Feel the leaves to see if they are dry or sticky.

Likely causes

Aphid infestation
Most likely
How to tell: You will see tiny green or black insects clustering on the new growth or undersides of leaves. The leaves may look distorted or sticky from honeydew.
What to do: Spray the plant with a gentle stream of water to knock the aphids off. Follow up with an application of insecticidal soap every 5 to 7 days until they are gone.
Heat stress
Possible
How to tell: The leaves curl inward and feel dry or crispy at the edges. This happens when the plant is exposed to too much direct, intense sun.
What to do: Move your plant to a spot with bright, indirect light. Ensure it is kept away from hot windows or direct afternoon sun.

Curling leaves on other plants

Find out what's wrong with your lesser stitchwort

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.

When to worry

If the curling is accompanied by sticky residue or visible bugs, you need to act quickly to prevent the colony from spreading. Minor curling on a single leaf is usually just a natural variation.

Stopping it coming back

Keep your plant healthy with consistent moisture and check the leaves weekly for any signs of pests.

Lesser stitchwort: curling leaves? Check yours with a photo

Every plant is a little different. Take a photo of your lesser stitchwort 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.

Get the app · Or check it from a photo now, free

Questions people ask

Are aphids harmful to my plant?: Yes, they suck the sap from the plant, which weakens it and causes the leaves to curl and distort. They can also spread viruses between plants.
Can I use neem oil for the aphids?: Neem oil is an effective treatment for aphids. Apply it in the evening to avoid burning the leaves in the sun.

Guides to these causes

Aphids

Why are my Lesser stitchwort leaves curling?