---
title: "What is this on the under side of my monsteras leaves? When I rub it…"
description: "What is this on the under side of my monsteras leaves? When I rub it it’s like a powder."
url: "https://getplanta.com/community/lKxUkhzRR_aIJD7o1QvtwQ/fizthY9xSRuNhlB-V_-Nig?language=ja"
community: "Pests, diseases and problems"
author: "Ashlee"
published: "2024-07-24T23:00:48.636614Z"
language: "en"
image: "https://images.getplanta.com/v1/resize/ZHd7S0ok-nyQ_OUdVwaihAUnbJHb6iqy4D8i_7STgTQ/oynRo6xVSz2ZSvFXH-Rc1Q.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)

# What is this on the under side of my monsteras leaves? When I rub it…

_Ashleeさんが2024-07-24に投稿しました_

What is this on the under side of my monsteras leaves? When I rub it it’s like a powder.

![1件中1件目の添付ファイル](https://images.getplanta.com/v1/resize/ZHd7S0ok-nyQ_OUdVwaihAUnbJHb6iqy4D8i_7STgTQ/oynRo6xVSz2ZSvFXH-Rc1Q.webp?size=large)

## 9件のコメント

### eatyacarbsさんが2024-07-24にコメントしました

i hope this isn’t scale….

#### Ashleeさんが2024-07-24に返信しました

So I had to look up what scale was. It doesn’t look like anything on google. I’ll try to get a better picture

#### Ashleeさんが2024-07-24に返信しました

It looks like coco powder

![1件中1件目の添付ファイル](https://images.getplanta.com/v1/resize/ZHd7S0ok-nyQ_OUdVwaihAUnbJHb6iqy4D8i_7STgTQ/HAN6cMEPQeOySlXf9Rir_w.webp?size=large)

#### eatyacarbsさんが2024-07-24に返信しました

rust fungus 👀

#### Alyssaさんが2024-07-25に返信しました

Yep it definitely is 😱

### Plant Fatherさんが2024-07-25にコメントしました

it’s rust. the only effective way i’ve found to treat it is unfortunately cutting off all affected foliage. if this means cutting off all your plants leaves, it may be wise to only remove the affected parts of leaves (with a sterile blade) so that the plant still has some healthy tissue for photosynthesis.

#### Ashleeさんが2024-07-25に返信しました

Thank you! Luckily it’s just that one leaf. It’s a small one near the base of the plant.

#### Plant Fatherさんが2024-07-25に返信しました

that’s great that it’s just one leaf. i would inspect thoroughly just to be sure, rust can spread quickly. keep checking up on your plant and hopefully there will be no more spots!

### Amie206さんが2024-07-25にコメントしました

Keep an eye on the plant for awhile. It took out one of my big monsteras. 😭

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