Q.lantanas
Our lantanas have grey looking leaves and they are turning brown. What is causing this, and what can we do for it?
Nikki
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on September 10, 2012
It is probably powdery mildew. You can treat it with either a chemical fungicide or neem oil. Both should be available at any store that sells gardening supplies. This article will help:
https://www.gardeningknowhow.com/plant-problems/disease/powdery-mildew-homemade-and-organic-remedies.htm
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