Plant Clinic

What are these black dots on my tephrocactus?


Hi all,

I recently got this tephrocactus geometricus with 2 ball growths. I watered for the first time since getting it a week ago yesterday, and today I noticed these small dots on the top cactus ball that didn’t seem to be there before.

The cactus is next to an east-facing window and gets a couple of hours of direct sunlight (through the glass) every afternoon. It does get colder at night but never below 50F.

I was looking at some similar past posts and can’t tell if it could possibly be a scale pest. The dots aren’t very raised and are very small, but the sudden appearance concerns me.

Does anyone have any experience with tephrocactus and have any advice? Thank you!!! ⛄️🌵

by yongwhei

1 Comment

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