Skip to content

Candelabra Spurge · Euphorbia lactea

What are these white fuzzy spots on my Coral Cactus?

Those white, cottony spots are likely mealybugs hiding in the ridges of your cactus. They love to tuck themselves into the tight crevices where they are hard to see.

Not sure it's this? Check a photo of your plant for free

pests on a plant
Photo: Jules Verne Times Two, CC BY-SA 4.0

Check these first

  1. Look closely in the deep crevices of the coral-like stems.
  2. Check the undersides of any branches.
  3. Wipe a white tissue over the stems to see if any bugs come off.

Likely causes

  1. Mealybugs

    Most likely

    How to tell: You see small, white, fuzzy masses that look like bits of cotton in the stem folds.

    What to do: Dip a cotton swab in rubbing alcohol and dab it directly onto the bugs to kill them. Repeat this every few days until you no longer see any pests.

  2. Scale Insects

    Possible

    How to tell: Small, hard, brown bumps that look like tiny shields on the stems.

    What to do: Gently scrape the bumps off with your fingernail or a soft brush. Wipe the area with a cloth soaked in soapy water to remove any remaining residue.

Pests on other plants

Find out what's wrong with your candelabra spurge

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.

Download on the App StoreGet it on Google Play

When to worry

A few bugs can be managed easily, but a full infestation can weaken the plant quickly. If the plant looks stunted or sticky, take action immediately.

Stopping it coming back

Keep your plant in a well-ventilated area and inspect it every time you water. Avoid overcrowding your plants to keep pests from spreading.

Candelabra Spurge: pests? Check yours with a photo

Every plant is a little different. Take a photo of your candelabra spurge 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.

Download on the App StoreGet it on Google Play

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

Questions people ask

Will neem oil hurt my Coral Cactus?
Neem oil is generally safe, but test it on a small area first. Avoid applying it in direct sunlight to prevent burning the skin of the cactus.
Do I need to isolate my plant?
Yes, move the affected plant away from your other houseplants immediately. Pests spread quickly, and you do not want them jumping to your other green friends.

Guides to these causes

More problems with Candelabra Spurge

Back to the Candelabra Spurge guide

This article was generated with AI on from the plant’s care profile and is general information, not horticultural advice. Read about how we build these guides.