Will these bugs kill my tree?

Most pests on Kousa dogwoods are minor. Only severe borer infestations typically cause permanent damage.

Should I use a systemic insecticide?

Avoid broad spectrum sprays as they often kill beneficial insects. Only use targeted treatments if a professional confirms a serious infestation.

Why are there bugs on my Kousa dogwood? Causes and fixes

Check these first

Inspect the trunk for holes or sawdust.
Check the undersides of leaves for small bumps.
Look for sticky residue on the leaves.

Likely causes

Dogwood Borer
Possible
How to tell: Look for small holes in the bark or sawdust like frass near the base of the tree. This pest tunnels into the wood and can weaken the trunk.
What to do: Keep the tree healthy with proper watering to prevent stress. If you find active borers, consult a local arborist to discuss professional trunk treatments.
Scale Insects
Possible
How to tell: These look like small, immobile bumps on the twigs or leaves. They often leave a sticky residue called honeydew on the foliage.
What to do: Scrub off light infestations with a soft brush and soapy water. For larger issues, apply horticultural oil during the dormant season to smother the insects.

Pests on other plants

Find out what's wrong with your kousa dogwood

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 you see significant branch dieback or if the tree looks stunted. A few bugs are usually manageable and not a sign of a dying tree.

Stopping it coming back

Maintain tree vigor through consistent watering and avoid wounding the bark with lawn mowers or string trimmers.

Kousa dogwood: pests? Check yours with a photo

Every plant is a little different. Take a photo of your kousa dogwood 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 these bugs kill my tree?: Most pests on Kousa dogwoods are minor. Only severe borer infestations typically cause permanent damage.
Should I use a systemic insecticide?: Avoid broad spectrum sprays as they often kill beneficial insects. Only use targeted treatments if a professional confirms a serious infestation.

Guides to these causes

Scale Insects

Why are there bugs on my Kousa dogwood?