---
title: "what is this white dust that keeps growing on my plants? is it a…"
description: "what is this white dust that keeps growing on my plants? is it a fungus?"
url: "https://getplanta.com/community/lKxUkhzRR_aIJD7o1QvtwQ/BEaoacWAERjdXWn1nc58rr"
community: "Pests, diseases and problems"
author: "Anna"
published: "2026-03-04T19:30:35.103791Z"
language: "en"
image: "https://images.getplanta.com/v1/resize/iO_SNNxlpB7uqBecLufBnvngWUSLNxs3SuaTp3Gx_Ac/nMhb6SDUREG1NV3zSh0H0g.webp?size=large"
---

[Community](https://getplanta.com/community.md) / [Pests, diseases and problems](https://getplanta.com/community/lKxUkhzRR_aIJD7o1QvtwQ.md)

# what is this white dust that keeps growing on my plants? is it a…

_Posted by Anna on 2026-03-04_

what is this white dust that keeps growing on my plants? is it a fungus?

![Attachment 1 of 1](https://images.getplanta.com/v1/resize/iO_SNNxlpB7uqBecLufBnvngWUSLNxs3SuaTp3Gx_Ac/nMhb6SDUREG1NV3zSh0H0g.webp?size=large)

## 4 comments

### franc commented on 2026-03-04

Looks like it might be mealybugs

### Muichiro Tokito commented on 2026-03-04

Possibly powdery mildew

### Waspinator commented on 2026-03-05

Definitely fungal, probably mold or powdery mildew. Check the roots for rot (if that's the case, take cuttings and try to restart the plant; root rot tends to be lethal in succulents.) If the roots are healthy, cut away the worst affected sections and treat the rest with fungicide. Increase air flow and avoid overwatering to prevent future issues. (And you may want to take a cutting from a healthy section anyway, just in case)

### Plant Mam commented on 2026-03-06

I agree with the others, but I would add that the powdery mildew can spread so be sure to move it away from your other plants.

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