Daylilies forum: White Spots on My Daylilies - What is it???

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Name: Lynnette
Northwest Illinois (Zone 5b)
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ljb5966
Sep 11, 2019 8:57 PM CST
I just discovered most of my daylilies have these white spots. The most infected are the ones my mom sent me from Texas. The row farthest away from the ones my mom sent are not affected. I am quite sure they were very stressed as they came from 95+ heat to a cooler location, but I have purchased daylilies from the south and I have never seen this before. I have had over 600 at one time and never have I seen this. Is this just powdery mildew and I should just treat them, or should I pull them before it gets on all of them. Yikes!
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[Last edited by ljb5966 - Sep 11, 2019 8:57 PM (+)]
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Name: Arlene
Southold, Long Island, NY (Zone 7a)
I was one of the first 300 contributors to the plant database! Tomato Heads Dahlias Houseplants Garden Ideas: Level 1 Photo Contest Winner: 2014
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pirl
Sep 11, 2019 9:20 PM CST
Powdery mildew forms a haze on leaves, so I seriously doubt it's what you have.

Are the afflicted plants growing near any tree that gives off sap?
Name: Daniel Erdy
Catawba SC (Zone 7b)
Pollen collector Fruit Growers Permaculture Hybridizer Plant and/or Seed Trader Organic Gardener
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ediblelandscapingsc
Sep 11, 2019 9:24 PM CST
Are the white dots on the ground the same stuff or is that perlite?
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Name: Lynnette
Northwest Illinois (Zone 5b)
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ljb5966
Sep 11, 2019 9:31 PM CST
No, no trees that have sap. I noticed that there is white stuff on top of the soil. I did amend the soil before I planted - could that white stuff have been in the top soil I got in bags?
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Name: Lynnette
Northwest Illinois (Zone 5b)
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ljb5966
Sep 11, 2019 9:31 PM CST
You cannot rub the white stuff off the leaves.
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Name: Lynnette
Northwest Illinois (Zone 5b)
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ljb5966
Sep 11, 2019 9:32 PM CST
I have seen powdery mildew on my bee balm and phlox and it does not look like that.
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Name: Lynnette
Northwest Illinois (Zone 5b)
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ljb5966
Sep 11, 2019 9:35 PM CST
It must be from the soil. I am done planting, otherwise there would be mulch down. I was waiting until I am done. I wonder what it is. It doesn't smell like anything. It almost looks similar to snail control pellets, but these are all different sizes.
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Name: Lynnette
Northwest Illinois (Zone 5b)
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ljb5966
Sep 11, 2019 9:41 PM CST
I read some more n line and it might be some kid of salt in the soil.
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Name: Daniel Erdy
Catawba SC (Zone 7b)
Pollen collector Fruit Growers Permaculture Hybridizer Plant and/or Seed Trader Organic Gardener
Daylilies Region: South Carolina Garden Ideas: Level 2 Garden Photography Herbs Region: United States of America
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ediblelandscapingsc
Sep 11, 2019 9:59 PM CST
Is the white stuff on the ground the same as on the plants or is whats on top the soil hard little white rock like things that crumble when smashed? What did you amend the soil with?
­čî┐A weed is a plant whose virtues have not yet been discovered­čî┐
Name: Lynnette
Northwest Illinois (Zone 5b)
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ljb5966
Sep 11, 2019 10:05 PM CST
1. I don't know. 2. Yes 3. With top soil and Miracle Grow bagged soil from Home Depot.
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Name: Lynnette
Northwest Illinois (Zone 5b)
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ljb5966
Sep 11, 2019 10:07 PM CST
It is pouring rain here - maybe that will wash the salt thing away. Maybe the salt is in the soil and the daylilies are taking the salt in through the roots and it is burning the leaves?
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Name: Lynnette
Northwest Illinois (Zone 5b)
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ljb5966
Sep 11, 2019 10:11 PM CST
I amended the soil with manure also and I just read that can contain a lot of salt.
Have a Happy Daylily Day!!
Name: Daniel Erdy
Catawba SC (Zone 7b)
Pollen collector Fruit Growers Permaculture Hybridizer Plant and/or Seed Trader Organic Gardener
Daylilies Region: South Carolina Garden Ideas: Level 2 Garden Photography Herbs Region: United States of America
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ediblelandscapingsc
Sep 11, 2019 11:02 PM CST
The stuff on the soil sounds like perlite. The white spots on the plant look fungal or maybe symptoms of herbicide drift.
­čî┐A weed is a plant whose virtues have not yet been discovered­čî┐
[Last edited by ediblelandscapingsc - Sep 11, 2019 11:03 PM (+)]
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Name: Davi (Judy) Davisson
Sherrills Ford, NC (Zone 7a)
Davi
Sep 12, 2019 3:54 AM CST
I have been getting white spots like that after using a Spectracide extended control product for killing grass and weeds that says it can be used in flower beds right on the front label. I would amend that label to "can be used in flower beds that don't contain daylilies". There are some slug bait products that can also produce damage to daylily leaves.
Name: Lynnette
Northwest Illinois (Zone 5b)
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ljb5966
Sep 12, 2019 5:09 AM CST
I live in a townhome community and there are no weeds in the grass and the most affected are next to the edge of the grass. I thought it was because of them being from TX, but no, they were doing excellent until they got sprayed. How sad. There is probably nothing I can do about that. I am sure they spray the grass every so often. I wonder what will happen to them...

Thanks!
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Name: Mike
Hazel Crest, IL (Zone 5b)
"Have no patience for bare ground"
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Hazelcrestmikeb
Sep 12, 2019 6:37 AM CST
Lynnette don't worry about the plants. They will recover.
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Name: Lynnette
Northwest Illinois (Zone 5b)
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ljb5966
Sep 12, 2019 6:41 AM CST
Okay, thanks so much. I am glad it is not some weird disease.
Have a Happy Daylily Day!!
Name: Davi (Judy) Davisson
Sherrills Ford, NC (Zone 7a)
Davi
Sep 12, 2019 7:25 AM CST
I have had no daylilies die from it, and I just cut off the affected foliage if it is too unsightly...they will be fine. Daylilies are tough. But I have stopped using the product that caused it.
Name: Dave
Wood Co TX & Huron Co MI
Daylilies Region: Texas Hostas Irises Region: Michigan Hybridizer
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SunriseSide
Sep 12, 2019 8:35 AM CST
I've had daylilies killed from overzealous "lawn guys" employed by the neighbor spraying "weed" killer. Grumbling Only happened once but that was plenty. Angry


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Name: Lynnette
Northwest Illinois (Zone 5b)
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ljb5966
Sep 12, 2019 9:50 PM CST
I am going to try and find out if there is anything I can do to change things or find out their spraying days so I can cover them. Thanks so much!
Have a Happy Daylily Day!!

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