Yes, neem oil is an effective organic treatment for scale. Apply it in the evening to avoid leaf burn from the sun.

Do I need to treat the whole tree?

It is best to treat the entire plant if you see pests on multiple branches to ensure you catch every hidden insect.

How do I get rid of bugs on my olive tree?

Check these first

Examine the stems for small, raised bumps.
Check the undersides of leaves for sticky residue.
Inspect any fruit for tiny puncture marks.

Likely causes

Scale Insects
Most likely
How to tell: You see small, hard, brown or tan bumps on the stems and undersides of leaves.
What to do: Scrape off the scale insects with a soft brush or your fingernail. Wipe the affected areas with a cotton swab dipped in rubbing alcohol.
Olive Fruit Fly
Possible
How to tell: If your tree has fruit, you might see premature drop or tiny holes in the olives.
What to do: Use sticky traps specifically designed for fruit flies to monitor and reduce the population. Keep the ground clear of fallen fruit to break their life cycle.

When to worry

A few bugs are manageable, but a heavy infestation can drain the tree of energy and lead to stunted growth. Treat as soon as you spot them.

Stopping it coming back

Regularly inspect your tree during your watering routine and wipe down leaves to keep them clean.

Not sure which one it is? Photograph your olive tree.

This page lists the usual causes. Pocket Botanist looks at your actual leaf and tells you the likely cause, how serious it is, and what to try first. Identification and a health check are free.

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Questions people ask

Can I use neem oil?: Yes, neem oil is an effective organic treatment for scale. Apply it in the evening to avoid leaf burn from the sun.
Do I need to treat the whole tree?: It is best to treat the entire plant if you see pests on multiple branches to ensure you catch every hidden insect.