---
title: "So I was looking at my plants and I noticed that there were some…"
description: "So I was looking at my plants and I noticed that there were some fungus gnats flying around a few of my plants so I asked a friend what I should do and she…"
url: "https://getplanta.com/community/lKxUkhzRR_aIJD7o1QvtwQ/651df0630f55d80d8fdc4102?language=ja"
community: "Pests, diseases and problems"
author: "Ava"
published: "2023-10-04T23:08:19.344Z"
language: "en"
image: "https://images.getplanta.com/v1/resize/verwdD5rVOnTOYqfxs-9C7x2e4ActgheCLOtpJrq5pc/f384330da5354895a44c0eb198ab2274.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)

# So I was looking at my plants and I noticed that there were some…

_Avaさんが2023-10-04に投稿しました_

So I was looking at my plants and I noticed that there were some fungus gnats flying around a few of my plants so I asked a friend what I should do and she said that I should spray the plants with soapy water. I wasn't 100% sure about the decision, but I did it anyways. I sprayed it on my succulent my spider plant, my monstera, and my cactus. Today I noticed that the cactus is on the verge of death and looks like she like deflated 😭 or something. Did I spray too much or does soapy water kill cacti? The other plants are fine, but there are still some fungus gnats :/ Is there any way I can save her?

![1件中1件目の添付ファイル](https://images.getplanta.com/v1/resize/verwdD5rVOnTOYqfxs-9C7x2e4ActgheCLOtpJrq5pc/f384330da5354895a44c0eb198ab2274.webp?size=large)

## 5件のコメント

### Gabryalさんが2023-10-05にコメントしました

Looks overwatered and rotting

### The Mar Vistanさんが2023-10-05にコメントしました

Can’t help with the cactus, but get Mosquito Bits for the fungus gnats ASAP. Those things will infest all your plants in about three days.

![1件中1件目の添付ファイル](https://images.getplanta.com/v1/resize/-TJhgOaW4V-GR82DtDk7N_WowBLTHXkNgEtUZ18keh8/bd2e6db909a2466fb79594248c55134d.webp?size=large)

#### Avaさんが2023-10-05に返信しました

Ok that's great, thank you so much!

#### Nina9さんが2023-10-06に返信しました

Omg thank you! I just re-potted all of my plants because of fungus gnats and I now i will go in search of my mosquito bits! I didn’t realize they took care of that!

### Audreyさんが2023-10-05にコメントしました

Another thing that works for gnats is to let the soil get quite dry between waterings and then do 1/3 hydrogen peroxide to water when you do water. This kills the larva that live in the moist soil

---

_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_