---
title: "Hi! I received this cactus as a gift a few months ago, and it has…"
description: "Hi! I received this cactus as a gift a few months ago, and it has slowly developed yellow/brown discoloration. The AI diagnoses through the Planta app said it…"
url: "https://getplanta.com/community/lKxUkhzRR_aIJD7o1QvtwQ/6GTvnwvMnAlgfre59tnIXi?language=ja"
community: "Pests, diseases and problems"
author: "Kayla"
published: "2025-03-17T23:02:09.762767Z"
language: "en"
image: "https://images.getplanta.com/v1/resize/v6-CEHVxPH1oGrIvi_OZSXIAT0r8DBsQ3S9bPHxZaQI/ErzijyUUR7OLndktffUPlg.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)

# Hi! I received this cactus as a gift a few months ago, and it has…

_Kaylaさんが2025-03-17に投稿しました_

Hi! I received this cactus as a gift a few months ago, and it has slowly developed yellow/brown discoloration. The AI diagnoses through the Planta app said it was a fungus and instructed me to remove the bad leaves from the plant. But that’s difficult to do on a sharp cactus lol. Any other suggestions?

![2件中1件目の添付ファイル](https://images.getplanta.com/v1/resize/v6-CEHVxPH1oGrIvi_OZSXIAT0r8DBsQ3S9bPHxZaQI/ErzijyUUR7OLndktffUPlg.webp?size=large)

![2件中2件目の添付ファイル](https://images.getplanta.com/v1/resize/v6-CEHVxPH1oGrIvi_OZSXIAT0r8DBsQ3S9bPHxZaQI/XLfDKyF_SPecq3CGfHScLA.webp?size=large)

## 3件のコメント

### Wolfen 🐺さんが2025-03-17にコメントしました

I would repot it in dry, gritty cactus mixed. It looks like it's been over watered. You can treat fungal with 1:3 parts dilution of peroxide, if you don't have Antifungal on hand. Treat every 3 days for at least 3x

### JWさんが2025-03-18にコメントしました

The ai usually has bad diagnoses. I would do research if it's something you don't know about. This looks like over watering I'm pretty sure.

### Kaylaさんが2025-03-18にコメントしました

Thanks for the help!

---

_Plantaコミュニティ (https://getplanta.com)。閲覧はどなたでも可能です。投稿、コメント、いいねをするには、Plantaアプリをダウンロードしてください: https://getplanta.com/download_