Will aphids kill my plant?

A light infestation won't kill it, but a heavy one can weaken the plant significantly. It is best to treat them as soon as you see them.

Do I need to use harsh chemicals?

No, you should avoid harsh chemicals. Water sprays and insecticidal soaps are usually enough to handle the problem.

Greater Plantain: pests, causes and fixes

Check these first

Look closely at the new growth and the undersides of leaves.
Check for sticky residue on the leaves or the surface below the plant.

Likely causes

Aphid infestation
Most likely
How to tell: You will see tiny green or black insects clustered on the stems or undersides of leaves. They often leave behind a sticky residue called honeydew.
What to do: Spray the plant with a steady stream of water to knock the aphids off. If they persist, apply insecticidal soap or neem oil every 5 to 7 days.

Pests on other plants

Find out what's wrong with your greater plantain

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

It is serious if the leaves start to curl or turn yellow from the sap loss. A few aphids can be managed easily with a quick rinse.

Stopping it coming back

Check your plant weekly for early signs of pests. Keeping the plant healthy and in full sun makes it less attractive to aphids.

Greater Plantain: pests? Check yours with a photo

Every plant is a little different. Take a photo of your greater plantain 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

Will aphids kill my plant?: A light infestation won't kill it, but a heavy one can weaken the plant significantly. It is best to treat them as soon as you see them.
Do I need to use harsh chemicals?: No, you should avoid harsh chemicals. Water sprays and insecticidal soaps are usually enough to handle the problem.

Guides to these causes

Aphids

What are these bugs on my Broadleaf Plantain?