Q.White Spots on Rosemary
What are the white spots on my rosemary plant?
Heather
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on May 15, 2011
It could be powdery mildew or a pest. This article will help you with powdery mildew: https://www.gardeningknowhow.com/edible/herbs/rosemary/white-powder-on-rosemary.htm
It may also be pests, possibly mealybugs. This article will help with them:
https://www.gardeningknowhow.com/plant-problems/pests/mealybugs-white-residue-on-plants-leaves.htm
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