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Mexican snowball · Echeveria elegans

What are these white fuzzy spots on my Mexican snowball?

Those white, cottony patches are likely mealybugs, which are common pests that love to hide in the tight spaces of your succulent. They feed on the plant juices and can weaken it over time. Check the leaf axils where the leaves meet the stem for these pests.

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

Check these first

  1. Inspect the base of the leaves for white, cottony clusters.
  2. Look for sticky residue on the leaves.
  3. Check neighboring plants for signs of the same pests.

Likely causes

  1. Mealybugs

    Most likely

    How to tell: You will see small, white, fluffy masses that look like bits of cotton. They often cluster in the crevices between leaves.

    What to do: Dip a cotton swab in rubbing alcohol and touch it directly to the mealybugs to kill them on contact. Repeat this every few days until you no longer see any signs of the pests.

  2. New Plant Infestation

    Possible

    How to tell: Pests often arrive on new plants brought into the home. They can quickly spread to your other succulents if not caught early.

    What to do: Always quarantine new plants for 2 weeks before placing them near your existing collection. Inspect them closely for any signs of white fuzz or webbing before introducing them to the group.

Pests on other plants

Find out what's wrong with your mexican snowball

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.

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When to worry

A few bugs are easy to manage, but a full infestation can cause leaf drop and stunt growth. Treat it as soon as you spot the first bit of cotton.

Stopping it coming back

Keep your plant healthy with proper light and airflow, and inspect it regularly during your watering routine.

Mexican snowball: pests? Check yours with a photo

Every plant is a little different. Take a photo of your mexican snowball 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.

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Questions people ask

Will these bugs hurt me?
No, mealybugs are harmless to humans and pets. They only have an appetite for your succulent.
Do I need to use harsh chemicals?
Usually, rubbing alcohol is enough to handle a small infestation. Avoid heavy pesticides, as they can damage the delicate powdery coating on the leaves.

Guides to these causes

More problems with Mexican snowball

Back to the Mexican snowball 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.