On several of my echeverias I found this white powdery stuff (growing?).
I thought at first it was just some unusually thick farina but it is definitely spreading.
Is it some kind of fungus/mold?
by Haladesta
On several of my echeverias I found this white powdery stuff (growing?).
I thought at first it was just some unusually thick farina but it is definitely spreading.
Is it some kind of fungus/mold?
by Haladesta
2 Comments
Powdery mildew, use a light fungicide.
Pretty bad case of powdery mildew, a harmful fungal infection that spreads extremely easily and quickly.
The first step that needs to be taken when you see PM in your collection is isolating any infected plants, preferably in a completely separate room from any other you may have. After that, you can begin treatment. Copper fungicide is the most commonly recommended treatment, though I personally had very limited success with it. I’ve seen more people saying they’ve had great success with sulfur.
Aside from actual treatment, it’s crucial that you practice proper watering habits, are using a substrate that dries quickly, and ensure the plants are receiving good airflow and light.
The r/succulent sub’s write-up about PM is helpful and details other precautions to take and a few of the various treatment method options: [https://www.reddit.com/r/succulents/comments/1045xbi/powdery_mildew_psa/](https://www.reddit.com/r/succulents/comments/1045xbi/powdery_mildew_psa/)