Pocket Botanist
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Check these first
- Inspect the undersides of new leaves for clusters of insects.
- Look for sticky honeydew on the foliage.
- Check for fine webbing near the stems.
Likely causes
Aphids
Most likelyHow to tell: You will see small green or black insects clustering on tender new stems and leaf undersides. They often leave behind a sticky residue called honeydew.
What to do: Spray the plant with a strong stream of water from your hose to knock them off. If they persist, apply insecticidal soap or neem oil every 5 to 7 days until they are gone.
Spider Mites
PossibleHow to tell: Look for fine webbing between leaves and tiny yellow stippling on the foliage. These pests thrive in hot, dry conditions.
What to do: Increase humidity around the plant by misting it regularly. Wipe down the leaves with a damp cloth and use a horticultural oil to manage the population.
When to worry
A few bugs are normal, but if the plant stops growing or leaves start curling, you need to intervene immediately.
Stopping it coming back
Keep your vine healthy with consistent water and good air circulation to make it less attractive to pests.
Not sure which one it is? Photograph your potato vine.
This page lists the usual causes. Pocket Botanist looks at your actual leaf and tells you the likely cause, how serious it is, and what to try first. Identification and a health check are free.
Questions people ask
- Will these bugs kill my plant?
- Usually not, but they can weaken it significantly and cause stunted growth. It is best to treat them early.
- Can I use dish soap to kill them?
- You can, but be careful to use a mild, non-degreasing soap diluted heavily in water. Commercial insecticidal soaps are safer for the plant.
More problems with Potato vine
This article was generated with AI from the plant’s care profile and is general information, not horticultural advice. Read about how we build these guides.