Cactus

White Dust on Indoor Cactus


Elizfin added on October 1, 2017 | Answered

Recently I noticed that my cactus has a white dust all over the older parts ( it has recently grown a bit) the dust brushes off easily What could cause this?


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ANSWERS
DLarum
Certified GKH Gardening Expert
Answered on October 2, 2017

This is a fungal disease, most likely powdery mildew. This article should help
https://www.gardeningknowhow.com/houseplants/hpgen/powdery-mildew-treatment.htm

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