Cactus and Tender Succulents forum: Something Odd Happening to Huernia

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Name: Lindsey
Ohio (Zone 6a)
Bee Lover Garden Photography Enjoys or suffers cold winters Dog Lover Cat Lover Bromeliad
Container Gardener Region: Ohio Cactus and Succulents Greenhouse
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ljones26
Nov 24, 2017 11:16 AM CST
I came home from school and saw that something odd is happening to my H. schneideriana. Any ideas? I've had it for a couple years now.
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Name: Laurie b
Western Washington (Zone 7b)
Houseplants Region: Pacific Northwest Sedums Orchids Tropicals Region: Mexico
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lauriebasler
Nov 25, 2017 12:42 AM CST
In my experience, that sort of damage is from the plant being too wet at some point and some of the roots rotted, affecting some of the plant. The good news is it looks like it's confined so far and can be cured, and is trying to right itself. Read up on fungal diseases in cactus and take measures that are recommended.

Even if you feel like it's improving I don't think you can leave that bad stem on the plant. I think the only way to save the plant from it spreading is to remove the affected areas.

Succulents and cactus are a big part of my collection, but they are a newer part of my houseplant collection. There are a gazillion growers here who will give you great tips.
Name: Lindsey
Ohio (Zone 6a)
Bee Lover Garden Photography Enjoys or suffers cold winters Dog Lover Cat Lover Bromeliad
Container Gardener Region: Ohio Cactus and Succulents Greenhouse
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ljones26
Nov 25, 2017 10:07 AM CST
@baja_costero do you have any ideas/suggestions? Smiling
Name: Laurie b
Western Washington (Zone 7b)
Houseplants Region: Pacific Northwest Sedums Orchids Tropicals Region: Mexico
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lauriebasler
Nov 25, 2017 10:48 AM CST
@baja_costero. I would really love to have your recommendation for Lindsey..
Name: Daisy I
Reno, Nv (Zone 6b)
Not all who wander are lost
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DaisyI
Nov 25, 2017 11:32 AM CST
Can you wipe it off? It looks like mildew caused by poor air circulation.
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

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Name: Baja
Baja California (Zone 11b)
Cactus and Succulents Seed Starter Foliage Fan Xeriscape Container Gardener Bromeliad
Hummingbirder Native Plants and Wildflowers Garden Photography Region: Mexico Plant Identifier Forum moderator
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Baja_Costero
Nov 25, 2017 3:08 PM CST

Moderator

Yes, that would be my guess. That plant should be green without that kind of fine surface texture. Even the bottom of the plant looks affected. Try giving it a good scrub, maybe spray it down with 70% ethanol afterwards. The best approach at that point is prevention, which like Daisy says usually has to do with increasing air flow, maybe combined with stronger light.

We have a near-constant onshore breeze here and even the plants indoors are right by a door that's open half the day, so airflow is never a concern here, and I have never had mildew on my plants. So I am just guessing.

There is a species of fungus that's a dedicated parasite of Euphorbias, yes very exotic but true, and I had that once. Kind of a nightmare. That's the only time I've had white stuff growing on my plants, and curiously that fungus was not at all inhibited by direct sun or dry air or airflow... much harder to deal with.
[Last edited by Baja_Costero - Nov 25, 2017 3:25 PM (+)]
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Name: Laurie b
Western Washington (Zone 7b)
Houseplants Region: Pacific Northwest Sedums Orchids Tropicals Region: Mexico
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lauriebasler
Nov 25, 2017 7:09 PM CST
Wow, I am glad you came.
Name: Lindsey
Ohio (Zone 6a)
Bee Lover Garden Photography Enjoys or suffers cold winters Dog Lover Cat Lover Bromeliad
Container Gardener Region: Ohio Cactus and Succulents Greenhouse
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ljones26
Nov 25, 2017 8:11 PM CST
Well shoot, I just cut that portion off with a knife! Hilarious! I will see if the rest wipes off!!! Thank you everyone Hilarious!

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