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Houseplant Problems

Q.what causes white dusty spots on the top of my plant leaves

simpleman added on January 13, 2011 | Answered

this is a indoor garden

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Certified GKH Gardening Expert
Answered on January 14, 2011

It could be water spots. If you water from above the plants, the water on the leaves can dry and leave a dusty residue which is the minerals in the water.

If the spots are more fuzzy like cotton, it could be mealybugs. This article will help you with those: https://www.gardeningknowhow.com/plant-problems/pests/mealybugs-white-residue-on-plants-leaves.htm

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