Ask a Question forum: White stuff on my coneflowers

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Name: Deborah
midstate South Carolina (Zone 8a)
Don't Sweat the Small Stuff!
Charter ATP Member Amaryllis Region: United States of America Tropicals Seed Starter Plumerias
Plant and/or Seed Trader Peonies Lilies Irises Hummingbirder Echinacea
Aug 15, 2014 7:49 AM CST
Some of my echinaceas have gone to seed. But I notice that when I cut off the conehead, there is white stuff at the base. Sometimes I find it on the stem as well. I looked at the plants, but it's really not on any of the leaves. Could this still be powdery mildew? In my zone it's hot and humid and the plants are in full sun most of the day.
Name: Ann ~Heat zn 9, Sunset
North Fl. (Zone 8b)
Garden Sages Native Plants and Wildflowers Xeriscape Organic Gardener I was one of the first 300 contributors to the plant database! Garden Ideas: Master Level
Butterflies Charter ATP Member Plant Identifier Million Pollinator Garden Challenge Dog Lover Birds
Aug 15, 2014 7:53 AM CST
It would help a lot if you could post some photos Deborah.
I am a strong believer in the simple fact is that what matters in this life is how we treat others. I think that's what living is all about. Not what I've done in my life but how I've treated others.
~~ Sharon Brown ~~

Name: Lin
Florida Zone 9b, 10a

Region: United States of America Deer Region: Florida Charter ATP Member Million Pollinator Garden Challenge I was one of the first 300 contributors to the plant database!
Garden Procrastinator Birds Butterflies Bee Lover Hummingbirder Container Gardener
Aug 15, 2014 7:59 AM CST
Deborah, I agree ... if you can post a photo or two showing the white stuff at the base of the flower head it might be easily identified. Meanwhile, here's a link to images of powdery mildew: Most images show the mildew on the foliage but if you sroll down the page a bit there are some roses or other flowers with mildew at the flowers.

And, in case it's mealybugs, here's are links with photo's for those critters:

~ Playing in the dirt is my therapy ... and I'm in therapy a lot! ~

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