---
title: "Hi! My prickly pear has been flourishing over the last few years, but…"
description: "Hi! My prickly pear has been flourishing over the last few years, but I just noticed these brown spots this past week. Is this a fungal infection? If so, any…"
url: "https://getplanta.com/community/lKxUkhzRR_aIJD7o1QvtwQ/4vdx0Js9Sc60ljXA1lLbxA?language=ko"
community: "Pests, diseases and problems"
author: "Mike S"
published: "2024-02-10T22:38:15.187791Z"
language: "en"
image: "https://images.getplanta.com/v1/resize/CCN409MxRDBaW-5l8MajQ-Ro4hvRnB62iahNRi2wLok/evdXlgbKTwq2Bs1qmPQrwQ.webp?size=large"
---

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# Hi! My prickly pear has been flourishing over the last few years, but…

_Mike S님이 2024-02-10에 게시함_

Hi! My prickly pear has been flourishing over the last few years, but I just noticed these brown spots this past week. Is this a fungal infection? If so, any suggestions on a treatment plan would be very much appreciated!

Additional notes: the room has a south-facing window, and the plant is about 5 ft from it. I water it once a week and have doing so for a couple years.

![1개 중 1번째 첨부 파일](https://images.getplanta.com/v1/resize/CCN409MxRDBaW-5l8MajQ-Ro4hvRnB62iahNRi2wLok/evdXlgbKTwq2Bs1qmPQrwQ.webp?size=large)

## 4개의 댓글

### 3therea1님이 2024-02-10에 댓글을 남겼어요.

It looks like scales. The best thing to do is get a cotton swab and 70% rubbing alcohol and start scraping/swiping them all off. Then I would repot it, and sprinkle in some systemic granules (helps prevent future infection). Your cacti may be prone to fungal infections due to the open wounds left by the scales, so you may also want to spray it with some copper fungicide.

#### Mike S님이 2024-02-24에 답변했습니다.

It doesn’t seem to be scales. The 50/50 alcohol mix isn’t affecting the spots at all. No changes in appearance. Could it be fungal?

### Sunny님이 2024-02-10에 댓글을 남겼어요.

Cactus scale. They cement themselves onto cacti very quickly. Treat as stated above. But, review the Safety Data Sheet for the commercial pesticides like Bonide System Granules or similar which warns of lung cancer and lung damage when exposed to the granules. It requires protective gloves, masks and clothing when exposed to the granules.

### Mike S님이 2024-02-11에 댓글을 남겼어요.

Thank you, both! Our ivy had scales recently, so looks like I just can’t get rid of them. I have the systemic, neem oil and insecticide soap, so unless cactus scale is different, I’ll treat them the same way.

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