Will aphids kill my Ninebark?

Usually no, but a heavy infestation can weaken the shrub and make it look unsightly. It is best to treat them early before they spread.

Can I use dish soap to kill the bugs?

You can, but make sure it is a mild, non-detergent soap. Mix about one tablespoon per quart of water and spray it directly on the pests.

Why are there bugs on my Ninebark? Causes and fixes

Check these first

Inspect the undersides of new leaves for clusters of small insects.
Look for sticky residue on the stems or leaves.
Check for fine webbing between the branches.

Likely causes

Aphids
Most likely
How to tell: You will see small, soft-bodied insects, often green or black, huddled together on new shoots. They leave behind a sticky residue called honeydew that can attract ants.
What to do: Blast the aphids off with a strong stream of water from your garden hose. If the infestation persists, spray the affected areas with insecticidal soap or neem oil every 5 to 7 days until they are gone.
Spider Mites
Possible
How to tell: These tiny pests create fine, dusty webbing between leaves and stems. The foliage may look stippled or pale as they drain the plant's moisture.
What to do: Increase humidity around the plant if possible and wash the foliage thoroughly with water. Apply horticultural oil to the leaves to smother any remaining mites.

Find out what's wrong with your ninebark

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

A few aphids are usually harmless, but you should act if the leaves start to curl or the plant shows signs of stunted growth. It is normal to see a few beneficial insects like ladybugs patrolling the plant.

Stopping it coming back

Keep your Ninebark healthy with proper watering and avoid excessive nitrogen fertilizer, which encourages the soft growth that aphids love.

Keep your ninebark healthy from here

Save your plant in Pocket Botanist and you get care reminders timed for this plant, plus a care history that shows what worked. Identification and a health check are free.

Get the app · Or check it from a photo now, free

Questions people ask

Will aphids kill my Ninebark?: Usually no, but a heavy infestation can weaken the shrub and make it look unsightly. It is best to treat them early before they spread.
Can I use dish soap to kill the bugs?: You can, but make sure it is a mild, non-detergent soap. Mix about one tablespoon per quart of water and spray it directly on the pests.

Why are there bugs on my Ninebark?