Salvia Plants
Q.

what causes white spots on leaves that is not powdery mildew?

Zone Kelso, WA. Zone 8 | mamahart5 added on July 27, 2019 | Answered

I have numerous plants with white spots on the leaves, like radio red salvia, and mint

A.
A.Answers to this queston: Add Answer
Downtoearthdigs
Certified GKH Gardening Expert
Answered on July 29, 2019

White spots could be a fungus, Mealy Bugs or Scale or even sun scorch from overhead watering.

https://www.gardeningknowhow.com/plant-problems/pests/insects/what-is-soft-scale.htm

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