---
title: "White mold or bugs? I recently treated my plants with insecticidal…"
description: "White mold or bugs? I recently treated my plants with insecticidal soap because of a mealy bug outbreak. It’s been less than a week and I am seeing this on…"
url: "https://getplanta.com/community/lZ7uAE3pQ86jnFGxrCwLrg/XSZn-T7FRUKyReagkTC4oQ?language=ja"
community: "Anything about plants"
author: "Bodhi_PlantMama"
published: "2024-03-10T23:34:21.486799Z"
language: "en"
image: "https://images.getplanta.com/v1/resize/bLvXZG3wxfbiMR1_tqKaJBTSKwaR7PLewWroiTwho4E/5A16Mg_7TVmv-boxr4OlTg.webp?size=large"
---

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# White mold or bugs? I recently treated my plants with insecticidal…

_Bodhi\_PlantMamaさんが2024-03-10に投稿しました_

White mold or bugs?

I recently treated my plants with insecticidal soap because of a mealy bug outbreak. It’s been less than a week and I am seeing this on some plants (the begonia is the worst).  
Is this a continuing sign of the pests or is this mold of some sort?  
The begonia definitely had little cotton like pieces on the plant stem before treating.

Help 😭

![3件中1件目の添付ファイル](https://images.getplanta.com/v1/resize/bLvXZG3wxfbiMR1_tqKaJBTSKwaR7PLewWroiTwho4E/5A16Mg_7TVmv-boxr4OlTg.webp?size=large)

![3件中2件目の添付ファイル](https://images.getplanta.com/v1/resize/bLvXZG3wxfbiMR1_tqKaJBTSKwaR7PLewWroiTwho4E/cNWAS9vwTjSD8D-YHHR9-Q.webp?size=large)

![3件中3件目の添付ファイル](https://images.getplanta.com/v1/resize/bLvXZG3wxfbiMR1_tqKaJBTSKwaR7PLewWroiTwho4E/dS6dJOpfS9-p70nacDnncQ.webp?size=large)

## 6件のコメント

### Argetlamさんが2024-03-10にコメントしました

This may not be the right answer for your plant, but I’ve seen this buildup on the top of my soil when I water with tap water instead of purified water. In my instance, it was just mineral buildup.

#### Adaさんが2024-03-10に返信しました

I agree, I think it’s just mineral build up.

### Soupさんが2024-03-10にコメントしました

If you’re from the UK like me then use rainwater, tap water is extremely hard

### Sunnyさんが2024-03-11にコメントしました

Looks like fungus. It has a web appearance. It’s not harmful. It shows the soil is staying wet maybe too long. Let the soil dry out more between water. Ensure you have good air circulation to help dry the soil faster. You can use a fungicide if it’s unsightly.

### Timmyturnerさんが2024-03-11にコメントしました

Boil a large amount of water and store it like my 3 gallon tub it helps eliminate a lot of what’s in the tap water I don’t have this problem anymore since I started distilling my tap (boil) granted I’m sure there’s still chemicals in the water but I’m sure not near half as much

### Bodhi\_PlantMamaさんが2024-03-11にコメントしました

I actually use spring water! I am think it got a bit too saturated when spraying it for pests. I’m just happy it’s not more bugs lol

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