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Name: Terri Osipov
Rome, Georgia (Zone 7b)
Every day in the yard is a GOOD day
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IJsbrandtGA
May 26, 2017 2:38 PM CST
@dyyzypyxxy @Daisyl et al. Hello yall...i have discovered a new problem and need your help. I can't remember the name of this plant and I think it's a succulent. Anyway the leaves are drying up and leaving behind a thick white flour-like powder on the stems. I don't see any whiteflies on any of my indoor plants. What might this be?
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"Speak to the Earth and it shall teach Thee" Job 12:8
Name: Daisy I
Reno, Nv (Zone 6b)
Not all who wander are lost
Garden Sages Plant Identifier
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DaisyI
May 26, 2017 3:00 PM CST
Hi Terri,

Your plant has a bad case of powdery mildew. It is usually caused by poor air circulation and humidity. If you mist, stop. Let the soil dry between waterings and get some air circulation around the plant.

You may be able to get rid of the mildew by washing it off with water. You can also use a spray fungicide.

Whichever you choose to try, wet the leaves, stem and soil. I would start with water and move on to the fungicide if the mildew continues to be a problem.
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost

Webmaster: osnnv.org
Name: Rick Corey
Everett WA 98204 (Zone 8a)
Sunset Zone 5. Koppen Csb. Eco 2f
Frugal Gardener Garden Procrastinator I helped beta test the first seed swap Plant and/or Seed Trader Seed Starter Region: Pacific Northwest
Photo Contest Winner: 2014 Avid Green Pages Reviewer Garden Ideas: Master Level Garden Sages I was one of the first 300 contributors to the plant database! I helped plan and beta test the plant database.
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RickCorey
May 26, 2017 7:29 PM CST
I don't know if this would help with succulent powdery mildew, but many people spray dilute hydrogen peroxide on fungus-y leaves and stems.

2 ounces of 3% "drugstore hydrogen peroxide" plus one quart of water = 0.2% hydrogen peroxide

Some use it much stronger, but make sure first that it won't hurt the leaves.
Half that strength is OK for soaking seeds.

http://www.using-hydrogen-pero...
http://www.using-hydrogen-pero... <-- mixing charts
Name: Terri Osipov
Rome, Georgia (Zone 7b)
Every day in the yard is a GOOD day
Dog Lover Bee Lover
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IJsbrandtGA
May 27, 2017 2:08 AM CST
Thanks @RickCorey and @Daisyl! How interesting. The funny thing is that this guy sits next to my air purifier in a room with a ceiling fan. I don't mist my plants; I just never got into that habit. I am guessing that I should try the peroxide mist just briefly b/c I need to reduce the humidity and not mist in general? Also, why is it that usually powdery mildew is unsightly but not detrimental, then in this case the leaves are drying up at the tips then falling off? Thanks again so much. Thank You!
"Speak to the Earth and it shall teach Thee" Job 12:8
Name: Tiffany purpleinopp
Opp, AL ๐ŸŒต๐ŸŒทโš˜๐ŸŒน๐ŸŒป (Zone 8b)
Houseplants Organic Gardener Composter Region: Gulf Coast Miniature Gardening Native Plants and Wildflowers
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purpleinopp
May 27, 2017 5:57 AM CST
That white powder is a normal feature of your Kalanchoe:


It's probably K. luciae:
Flapjacks (Kalanchoe luciae)
and there is also thyrsiflora which looks the same but doesn't turn red in the sun, and is much less likely to be found for sale:
http://www.smgrowers.com/info/...

Regardless of the species, the leaves would point up at the tips if it was getting full sun. Any increase in exposure that you could give would help your plant, gradually, so it does not get sunburned.
๐Ÿ‘€๐Ÿ˜๐Ÿ˜‚ - SMILE! -โ˜บ๐Ÿ˜Žโ˜ปโ˜ฎ๐Ÿ‘ŒโœŒโˆžโ˜ฏ๐Ÿฃ๐Ÿฆ๐Ÿ”๐Ÿ๐Ÿฏ๐Ÿพ
The less I interfere, the more balance mother nature provides.
๐Ÿ‘’๐ŸŽ„๐Ÿ‘ฃ๐Ÿก๐Ÿƒ๐Ÿ‚๐ŸŒพ๐ŸŒฟ๐Ÿโฆโง ๐Ÿƒ๐Ÿ๐Ÿ‚๐ŸŒพ๐ŸŒป๐ŸŒธ๐ŸŒผ๐ŸŒน๐ŸŒฝโ€โ˜€๐ŸŒบ
โ˜•๐Ÿ‘“ The only way to succeed is to try.
Name: Tiffany purpleinopp
Opp, AL ๐ŸŒต๐ŸŒทโš˜๐ŸŒน๐ŸŒป (Zone 8b)
Houseplants Organic Gardener Composter Region: Gulf Coast Miniature Gardening Native Plants and Wildflowers
Tropicals Butterflies Garden Sages Cactus and Succulents Plant Identifier Million Pollinator Garden Challenge
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purpleinopp
May 27, 2017 8:06 AM CST
Further info: "The white floury coating on the leaves and inflorescence helps to reflect the sun away, thus aiding in keeping the plant cool. It is a little like wearing a white T-shirt instead of black on a hot day. Other succulents like Cotyledon orbiculata and Aloe dichotoma use the same technique. Ants, bees and other flying insects which visit the flower in the middle of the day are responsible for pollinating Kalanchoe."
- http://pza.sanbi.org/kalanchoe...

"In the plantsโ€™ natural desert habitat, the leaves are covered in a white powder that helps reflect the sun and keep the plants cool."
- http://www.superfloralretailin...

" with pairs of perpendicular leaves that are greatly covered in a heavy epicuticular wax. Epicuticular wax is the powdery white buildup that naturally occurs on some succulents which is meant to act as an added layer of protection against too much sunlight, water, and infections or fungus."
- http://partial-sun.tumblr.com/...

Apparently hydrophobic:
http://www.sciencedirect.com/s...
http://science.sciencemag.org/...
๐Ÿ‘€๐Ÿ˜๐Ÿ˜‚ - SMILE! -โ˜บ๐Ÿ˜Žโ˜ปโ˜ฎ๐Ÿ‘ŒโœŒโˆžโ˜ฏ๐Ÿฃ๐Ÿฆ๐Ÿ”๐Ÿ๐Ÿฏ๐Ÿพ
The less I interfere, the more balance mother nature provides.
๐Ÿ‘’๐ŸŽ„๐Ÿ‘ฃ๐Ÿก๐Ÿƒ๐Ÿ‚๐ŸŒพ๐ŸŒฟ๐Ÿโฆโง ๐Ÿƒ๐Ÿ๐Ÿ‚๐ŸŒพ๐ŸŒป๐ŸŒธ๐ŸŒผ๐ŸŒน๐ŸŒฝโ€โ˜€๐ŸŒบ
โ˜•๐Ÿ‘“ The only way to succeed is to try.
[Last edited by purpleinopp - May 27, 2017 8:07 AM (+)]
Give a thumbs up | Quote | Post #1455851 (6)
Name: Daisy I
Reno, Nv (Zone 6b)
Not all who wander are lost
Garden Sages Plant Identifier
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DaisyI
May 27, 2017 9:19 AM CST
Thumbs up
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost

Webmaster: osnnv.org
Name: Rick Corey
Everett WA 98204 (Zone 8a)
Sunset Zone 5. Koppen Csb. Eco 2f
Frugal Gardener Garden Procrastinator I helped beta test the first seed swap Plant and/or Seed Trader Seed Starter Region: Pacific Northwest
Photo Contest Winner: 2014 Avid Green Pages Reviewer Garden Ideas: Master Level Garden Sages I was one of the first 300 contributors to the plant database! I helped plan and beta test the plant database.
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RickCorey
May 30, 2017 3:35 PM CST
Wow, a plant with powder-base makeup!
Name: Daisy I
Reno, Nv (Zone 6b)
Not all who wander are lost
Garden Sages Plant Identifier
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DaisyI
May 30, 2017 4:01 PM CST
Who'd a thought? Smiling
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost

Webmaster: osnnv.org
Name: greene
Savannah, GA (Sunset 28) (Zone 8b)
My dogs love me; some people don't.
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greene
May 30, 2017 4:39 PM CST
A plant that produces it's own sunscreen! How cool it that?! Hurray! I love learning new stuff on NGA!

People in certain parts of Asia use a plant product to protect their complexion from the sun...
https://en.wikipedia.org/wiki/...

Sunset Zone 28, AHS Heat Zone 9, USDA zone 8b~"Leaf of Faith"
Name: Tiffany purpleinopp
Opp, AL ๐ŸŒต๐ŸŒทโš˜๐ŸŒน๐ŸŒป (Zone 8b)
Houseplants Organic Gardener Composter Region: Gulf Coast Miniature Gardening Native Plants and Wildflowers
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purpleinopp
May 30, 2017 4:46 PM CST
Fascinating!

This epicuticular wax is also on Echeveria plants, and is why they get "fingerprints" if touched.
๐Ÿ‘€๐Ÿ˜๐Ÿ˜‚ - SMILE! -โ˜บ๐Ÿ˜Žโ˜ปโ˜ฎ๐Ÿ‘ŒโœŒโˆžโ˜ฏ๐Ÿฃ๐Ÿฆ๐Ÿ”๐Ÿ๐Ÿฏ๐Ÿพ
The less I interfere, the more balance mother nature provides.
๐Ÿ‘’๐ŸŽ„๐Ÿ‘ฃ๐Ÿก๐Ÿƒ๐Ÿ‚๐ŸŒพ๐ŸŒฟ๐Ÿโฆโง ๐Ÿƒ๐Ÿ๐Ÿ‚๐ŸŒพ๐ŸŒป๐ŸŒธ๐ŸŒผ๐ŸŒน๐ŸŒฝโ€โ˜€๐ŸŒบ
โ˜•๐Ÿ‘“ The only way to succeed is to try.
Name: Sandy B.
Ford River, Michigan UP (Zone 4b)
(Zone 4b-maybe 5a)
Charter ATP Member I was one of the first 300 contributors to the plant database! Garden Sages Million Pollinator Garden Challenge Seed Starter Vegetable Grower
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Weedwhacker
May 30, 2017 7:07 PM CST
I think a lot of us learned something new here! Thumbs up
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Name: Daisy I
Reno, Nv (Zone 6b)
Not all who wander are lost
Garden Sages Plant Identifier
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DaisyI
May 30, 2017 7:10 PM CST
I did!
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost

Webmaster: osnnv.org
Name: Terri Osipov
Rome, Georgia (Zone 7b)
Every day in the yard is a GOOD day
Dog Lover Bee Lover
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IJsbrandtGA
May 31, 2017 2:55 AM CST
purpleinopp said:That white powder is a normal feature of your Kalanchoe:


Uh oh.....

I have already sprayed and q-tipped away most of the flour substance believing it to be bad. I also gave it a healthy neem oil spray down.

It was inside in a West facing window. Should I leave it outside?

Amazing info....thanks so much! Thank You!
"Speak to the Earth and it shall teach Thee" Job 12:8
Name: Tiffany purpleinopp
Opp, AL ๐ŸŒต๐ŸŒทโš˜๐ŸŒน๐ŸŒป (Zone 8b)
Houseplants Organic Gardener Composter Region: Gulf Coast Miniature Gardening Native Plants and Wildflowers
Tropicals Butterflies Garden Sages Cactus and Succulents Plant Identifier Million Pollinator Garden Challenge
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purpleinopp
May 31, 2017 7:26 AM CST
At this point, you might want to ask in cactus/succulent forum. I'm sure you're not even close to being the first person to do that. I've done enough wrong things with plants that I thought were good things to do at the time to write a book. I was very alarmed too when I discovered the stem of my plant was not just white, but that the white stuff got all over my fingers when I touched it.

I never did find any info regarding whether these plants do this in any exposure, or more heavily in response to more exposure. But since it seems to be mostly on the stem on this particular species, its' function as sunscreen would seem very limited, so I wouldn't be too worried that it is now more susceptible to sunburn, but would be keeping an eye on things.

Best luck & good vibes!
๐Ÿ‘€๐Ÿ˜๐Ÿ˜‚ - SMILE! -โ˜บ๐Ÿ˜Žโ˜ปโ˜ฎ๐Ÿ‘ŒโœŒโˆžโ˜ฏ๐Ÿฃ๐Ÿฆ๐Ÿ”๐Ÿ๐Ÿฏ๐Ÿพ
The less I interfere, the more balance mother nature provides.
๐Ÿ‘’๐ŸŽ„๐Ÿ‘ฃ๐Ÿก๐Ÿƒ๐Ÿ‚๐ŸŒพ๐ŸŒฟ๐Ÿโฆโง ๐Ÿƒ๐Ÿ๐Ÿ‚๐ŸŒพ๐ŸŒป๐ŸŒธ๐ŸŒผ๐ŸŒน๐ŸŒฝโ€โ˜€๐ŸŒบ
โ˜•๐Ÿ‘“ The only way to succeed is to try.

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