Cactus and Succulents forum→Peruvian Apple Cactus - Rotting? Help?

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ElMikeD
Jun 5, 2020 8:55 AM CST
Hi Everyone,

I'm new to the forum but you all seem incredibly knowledgable so I'm hoping you can help me. I have an indoor peruvian apple cactus (about 7 feet tall) and I noticed that it appears to be rotting from the top of one of it's arms. I trimmed off some of the white looking rot but it grew back and it appears to be travelling down the arm of the cactus. I really want to save this cactus so please let me know if you have any advice. Photos here.

Thank you!
Mike
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Name: Stefan
SE europe(balkans) (Zone 6b)
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skopjecollection
Jun 5, 2020 9:21 AM CST
*Candelabra tree(euphorbia ingens) and rotting..
cut off the whole branch...
See whether or not the rot has spread to that bit of flesh...
Keep cutting till you see healthy flesh(should be white)
Wear googles , gloves and a mask(as if you were going outside), and use a cheap old knife, but sharp, that you WONT be using for cooking any more.
The plant is filled with toxic latex. (thus the gloves and mask and everyting else). Also, dip the knife in water with achohol diluted in it... this would prevent the sap from sticking to the knife...
Make sure you dont have any cuts or burns exposed either...

ElMikeD
Jun 5, 2020 11:54 AM CST
Okay thank you so much! I cut everything down to healthy looking flesh. Is there anything I can do to prevent this or is it just naturally occurring?
Name: Stefan
SE europe(balkans) (Zone 6b)
Cactus and Succulents Orchids Plant Lover: Loves 'em all! Garden Procrastinator Bulbs Foliage Fan
Purslane Bromeliad Container Gardener Houseplants Sedums Sempervivums
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skopjecollection
Jun 5, 2020 12:03 PM CST
ElMikeD said:Okay thank you so much! I cut everything down to healthy looking flesh. Is there anything I can do to prevent this or is it just naturally occurring?


Dont water too much, dont expose to lots of light suddenly, make sure the room the plant stays in is not too humid...standard stuff... shouldnt even offer many problems as a plant....
just keep a close eye on it now..,.
Name: Baja
Baja California (Zone 11b)
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Baja_Costero
Jun 5, 2020 12:17 PM CST

Moderator

On top of Stefan's previous good advice, I would add that you need to provide the strongest light you possibly can indoors. You cannot provide too much light to this plant if it will be a house plant. Right in front of your sunniest unobstructed southerly facing window would be ideal (assuming you're in the northern hemisphere).

The taller these plants get indoors, the more likely they are to suffer complications from insufficient light. A 7 footer would be near the ceiling here and the top of it would basically never see the sun, which will pretty inevitably lead to stretching (taller, weaker growth). Bottom line is that these Euphorbias are awesome container plants until they get too big, at which time you kind of have to restart them from cuttings if you want them to continue to be happy (and fit) in your home. On the plus side, it's ridiculously easy to start one from a cutting, and I can give instructions on that if you like.

Welcome!
[Last edited by Baja_Costero - Jun 5, 2020 8:12 PM (+)]
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