Q.I have white powdery mildew on the leaves of my poinsettia
How to care for it. I live in Costa Rica and they grow here but I want to get rid of the mold. . . . how?
Nikki
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on December 4, 2011
Powdery mildew is caused by a fungus. Neem oil can help with this. Here is more information: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm
https://www.gardeningknowhow.com/plant-problems/disease/powdery-mildew-homemade-and-organic-remedies.htm
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