Marigolds
Q.

Gray stuff on newly bought marigold petals. Immedietly cut flower off. Thoughts?

Zone 92651, Laguna Beach, Zone 10a | DaisyD added on August 10, 2018 | Answered

I bought a bunch of marigolds from a nursery today and noticed one of them had grayish petals. I cut it off and threw it away immediately. Could this be a sign of a fungus or disease in my other marigolds. I haven’t noticed any other gray spots on flowers yet. What could it be? Could this be harmful? What should I look out for?

A.
A.Answers to this queston: Add Answer
Downtoearthdigs
Certified GKH Gardening Expert
Answered on August 13, 2018

It sounds like is could be Powdery Mildew.

This article will help you.

https://www.gardeningknowhow.com/plant-problems/disease/get-the-cure-for-powdery-mildew.htm

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