Can I use neem oil on my begonia?

Yes, neem oil is generally safe for begonias. Test it on a small leaf first and avoid applying it in direct sunlight to prevent leaf burn.

How often should I check for pests?

A quick glance every time you water is usually enough. Catching pests early prevents them from spreading to your other plants.

Are there pests on my Begonia boliviensis? Causes and fixes

Check these first

Inspect the undersides of the leaves for tiny bugs.
Look for fine webbing between the stems.
Check for sticky residue on the foliage.

Likely causes

Aphids
Possible
How to tell: You see small, soft bodied insects clustered on new growth or the undersides of leaves. The leaves may look sticky or distorted.
What to do: Gently wash the plant with a soft stream of water to dislodge the insects. For larger infestations, apply insecticidal soap according to the label instructions.
Spider Mites
Possible
How to tell: Fine, silky webbing appears between the stems or leaves. The foliage may look speckled or pale.
What to do: Increase the humidity around the plant, as mites dislike moist air. Wipe the leaves with a damp cloth or use neem oil to treat the affected areas.

Find out what's wrong with your tuberous begonia

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

Pests are serious if they start causing leaf drop or stunted growth. Catching them early makes them much easier to manage.

Stopping it coming back

Keep the plant healthy with proper light and airflow, and inspect it whenever you water.

Keep your tuberous begonia 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.

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Questions people ask

Can I use neem oil on my begonia?: Yes, neem oil is generally safe for begonias. Test it on a small leaf first and avoid applying it in direct sunlight to prevent leaf burn.
How often should I check for pests?: A quick glance every time you water is usually enough. Catching pests early prevents them from spreading to your other plants.

Are there pests on my Begonia boliviensis?