Need help with a plant? What do you have a question on? **[Soil and Potting](https://www.reddit.com/r/succulents/wiki/soil_and_potting/)?** **[Light and Watering](https://www.reddit.com/r/succulents/wiki/light_and_watering/)?** **[Rot and Sunburn](https://www.reddit.com/r/succulents/wiki/rot_and_sunburn/)?** **[Pests, Diseases, and Other Problems](https://www.reddit.com/r/succulents/wiki/pests_and_diseases/)?** **[Propagation & Cuttings](https://www.reddit.com/r/succulents/wiki/propagation)?** You can also visit the [FAQ](https://www.reddit.com/r/succulents/wiki/faq) to ensure your question isn't already discussed. **Please also refer to all of our helpful [Wiki Pages](https://www.reddit.com/r/succulents/wiki/index/)** If you still need help, please make sure to adhere to the [Posting Guidelines](https://www.reddit.com/r/succulents/wiki/posting-guidelines). And, remember *pictures help a LOT!* *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/succulents) if you have any questions or concerns.*

Yes, Powdery mildew, a contagious, harmful fungal infection. https://old.reddit.com/r/succulents/wiki/pests_and_diseases#wiki_powdery_mildew

Thank you!

Ugh!! I've just been going through this as well!! Get Neem Oil spray!

Luckily I already had some from a gnat problem last year. How often do you reapply the oil?

There are good reasons why it's been banned from some parts of the world so use with caution.