Do I need to use harsh chemicals?

Usually, no. Water and insecticidal soap are very effective and safer for the environment.

Will aphids ruin my flowers?

Yes, they suck the sap from the buds, which can cause them to become deformed or fail to open. Catching them early is key.

Why are there bugs on my French rose buds? Causes and fixes

Check these first

Look closely at the flower buds for tiny insects.
Check for sticky residue on the leaves.
See if ants are climbing the stems.

Likely causes

Aphid infestation
Most likely
How to tell: You will see small green or pink insects clustered on new buds and stems. They often leave behind a sticky substance called honeydew.
What to do: Blast the aphids off with a strong stream of water from your hose. If they persist, spray the plant with insecticidal soap every 5 to 7 days until they are gone.
Ant activity
Possible
How to tell: You notice ants crawling up and down the stems of your rose. They are likely farming the aphids for their honeydew.
What to do: Once you remove the aphids, the ants will lose interest and move on. You can place a sticky barrier around the base of the stem to block them.

Pests on other plants

Find out what's wrong with your french rose

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 buds are covered in insects and fail to open properly. A few stray aphids are usually handled by ladybugs in the garden.

Stopping it coming back

Encourage beneficial insects like ladybugs and lacewings to visit your garden by planting diverse flowers nearby.

French rose: pests? Check yours with a photo

Every plant is a little different. Take a photo of your french rose 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

Do I need to use harsh chemicals?: Usually, no. Water and insecticidal soap are very effective and safer for the environment.
Will aphids ruin my flowers?: Yes, they suck the sap from the buds, which can cause them to become deformed or fail to open. Catching them early is key.

Guides to these causes

Aphids

Why are there bugs on my French rose buds?