---
title: "I just discovered the sad news that I had fungus gnat larvae in my…"
description: "I just discovered the sad news that I had fungus gnat larvae in my pot with some cactus seedlings and they ate my cacti! I thought it was weird the other day…"
url: "https://getplanta.com/community/lZ7uAE3pQ86jnFGxrCwLrg/0QYUvDJ97DfuIUcMWAqydh"
community: "Anything about plants"
author: "Hannah"
published: "2025-08-02T20:44:55.515119Z"
language: "en"
image: "https://images.getplanta.com/v2/cloudinary/global_data/communities/everythingHousePlants.jpg"
---

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# I just discovered the sad news that I had fungus gnat larvae in my…

_Posted by Hannah on 2025-08-02_

I just discovered the sad news that I had fungus gnat larvae in my pot with some cactus seedlings and they ate my cacti! I thought it was weird the other day when I noticed a seedling missing from the pot! I don’t want to give up on growing a cactus in the future but I want to be prepared for the possibility of getting the pest again. Any tips to prevent them?

## 3 comments

### LeafyGreenhouse commented on 2025-08-02

Diatomaceous earth (on the top)  
Neem oil  
Plant wipes !

#### LeafyGreenhouse replied on 2025-08-02

That’s what I use

### Carolinagreenthumb commented on 2025-08-03

I bought Death Drops….. works like a charm!

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