Can I use neem oil on my Fool's watercress?

Yes, neem oil is effective, but use it in the evening to avoid burning the leaves in the sun. Apply it sparingly to the affected areas.

Will aphids kill my plant?

They can weaken it significantly if left unchecked. Prompt removal is the best way to keep your plant thriving.

Why are there bugs on my Fool's watercress? Causes and fixes

Check these first

Inspect the undersides of leaves for small clusters of insects.
Check the soil moisture to ensure it has not dried out.
Look for sticky residue on the leaves.

Likely causes

Aphid infestation
Most likely
How to tell: You will see small green or black insects clustering on the stems and new leaves. They often leave behind a sticky residue called honeydew.
What to do: Spray the plant gently with a stream of water to knock them off. If they persist, apply a mild insecticidal soap every 5 to 7 days until they are gone.
Environmental stress
Possible
How to tell: Plants that are not getting enough light or are drying out become weaker and more prone to pests. Check if the soil has stayed consistently wet.
What to do: Move the plant to a spot with bright indirect light. Ensure the soil remains constantly moist by watering every 1 to 2 days.

Pests on other plants

Find out what's wrong with your fool's watercress

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

Worry if the leaves start curling or turning yellow from the feeding damage. A few bugs are manageable, but a heavy infestation can quickly stunt growth.

Stopping it coming back

Keep your plant healthy with consistent moisture and good light to help it resist pests. Check the foliage weekly for any early signs of visitors.

Fool's watercress: pests? Check yours with a photo

Every plant is a little different. Take a photo of your fool's watercress 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

Can I use neem oil on my Fool's watercress?: Yes, neem oil is effective, but use it in the evening to avoid burning the leaves in the sun. Apply it sparingly to the affected areas.
Will aphids kill my plant?: They can weaken it significantly if left unchecked. Prompt removal is the best way to keep your plant thriving.

Guides to these causes

Aphids

Why are there bugs on my Fool's watercress?

Check these first

Not sure what's wrong with your fool's watercress?