Pocket Botanist
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Check these first
- Inspect the undersides of the leaves for tiny clusters of bugs.
- Check the flower stalks for sticky residue.
- Look for ants, as they often farm aphids.
Likely causes
Aphid infestation
Most likelyHow to tell: You will see clusters of tiny green or black insects on the stems and new leaves. They often leave behind a sticky residue called honeydew.
What to do: Spray the plant with a gentle stream of water to knock them off. If they persist, apply a mild insecticidal soap or neem oil every 5 to 7 days until they are gone.
Environmental stress
PossibleHow to tell: Plants that are weak or stressed from poor light or irregular watering are more susceptible to pests. The plant may look generally unhappy or stunted.
What to do: Move your plant to a spot with consistent medium light. Ensure you are watering every 2 to 5 days to keep the soil evenly moist.
Find out what's wrong with your wavy bittercress
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
You should worry if the aphids are causing the leaves to curl or the plant to stop growing. A few bugs are manageable, but a full colony can quickly overwhelm this small plant.
Stopping it coming back
Keep your plant healthy with consistent moisture and check it weekly for early signs of pests. Avoid over fertilizing, as excess nitrogen can attract aphids.
Wavy bittercress: pests? Check yours with a photo
Every plant is a little different. Take a photo of your wavy bittercress 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.
Scan with your phone's camera to get the app
Or go to pocketbotanist.app/get on your phone
Get the app · Or check it from a photo now, free
Questions people ask
- Can I just wash the aphids off?
- Yes, a strong spray of water is often enough to clear a light infestation. Be sure to check back in a few days to make sure they have not returned.
- Will these bugs kill my plant?
- If left untreated, they can weaken the plant significantly by sucking out its sap. Early intervention is key to keeping your bittercress thriving.
Guides to these causes
More problems with Wavy bittercress
Back to the Wavy bittercress 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.