---
title: "Does anyone know what this white stuff is on my velvet calathea?"
description: "Does anyone know what this white stuff is on my velvet calathea?"
url: "https://getplanta.com/community/lKxUkhzRR_aIJD7o1QvtwQ/u7odZfjBRB2jqINm3xD6Lw?language=ja"
community: "Pests, diseases and problems"
author: "Nora"
published: "2024-06-02T13:55:32.520463Z"
language: "en"
image: "https://images.getplanta.com/v1/resize/HZS31UgiUJBjcIVj5gEhJzRUOjjOxc-J-KZJPWnUbTI/C4EdJsJERZebOceE5NGVbQ.webp?size=large"
---

[コミュニティ](https://getplanta.com/community.md?language=ja) / [Pests, diseases and problems](https://getplanta.com/community/lKxUkhzRR_aIJD7o1QvtwQ.md?language=ja)

# Does anyone know what this white stuff is on my velvet calathea?

_Noraさんが2024-06-02に投稿しました_

Does anyone know what this white stuff is on my velvet calathea?

![2件中1件目の添付ファイル](https://images.getplanta.com/v1/resize/HZS31UgiUJBjcIVj5gEhJzRUOjjOxc-J-KZJPWnUbTI/C4EdJsJERZebOceE5NGVbQ.webp?size=large)

![2件中2件目の添付ファイル](https://images.getplanta.com/v1/resize/HZS31UgiUJBjcIVj5gEhJzRUOjjOxc-J-KZJPWnUbTI/urEncRpcTXuozqYHnODcbA.webp?size=large)

## 3件のコメント

### kenaさんが2024-06-02にコメントしました

powdery mildew! it may be overwatered/too dark. i use Natria brand neem oil against fungus/pests.

consider moving it to a brighter spot/waiting a couple more days between watering to make sure it doesn’t come back.

#### Noraさんが2024-06-02に返信しました

ohh okay thank you!

### Planty28さんが2024-06-02にコメントしました

It doesnt look like powdery mildew, it looks like mineral build up from water that had fertilizer in it. Use a warm cloth and wipe away. If it’s powdery mildew you’ll be able to feel it and will wipe away with touch

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