Q.
Christmas Cactus
What are the white splotches(looks like spilt milk) and white spots on the leaves?
A.
BushDoctor
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on December 15, 2017
This is powdery mildew. This is most commonly caused by overwatering, high humidity, or lack of air circulation. You can correct this by spraying with neem oil. You can also add just a little wettable sulfur to the soil to keep it away, and prevent it in the future.
This article will refresh you on the care of the christmas cactus: https://www.gardeningknowhow.com/ornamental/cacti-succulents/christmas-cactus/advice-for-christmas-cactus-care.htm
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