CactiGuide.comcactus forum
cactus home cactus identification cactus tech care for your cactus learn more about cactus
cactus nomenclature where cactus grow cactus forum cacti pests and diseases why I grow cactus

Euphorbia Lactea - Candelabra - heeellpp

Use this forum to get advice on growing succulents and keeping them healthy

Moderators: hob, templegatejohn

Euphorbia Lactea - Candelabra - heeellpp

Postby SueQ0822 » Wed Dec 12, 2012 8:17 pm

Our office mascot has been growing successfully for about 2 years now, new bright green growth appears often. But recently I noticed the newest growth looked a little wrinkly and wilted... thought it might be overdue for a watering - so I gave it some water, that was 2 weeks ago - today I noticed a couple of those same spots are now brown... :shock: not sure what to do - the base had always had the mildew-like residue, so I don't think it's a fungus? I typically water every 2 weeks and begin to space out waterings more this time of year. Pardon the Christmas ornaments :)

Sue
Iowa, United States
Attachments
base.jpg
base.jpg (45.42 KiB) Viewed 306 times
close up.jpg
close up.jpg (34.56 KiB) Viewed 306 times
brown spot.jpg
brown spot.jpg (32.58 KiB) Viewed 306 times
SueQ0822
 
Posts: 2
Joined: Wed Dec 12, 2012 8:07 pm

Re: Euphorbia Lactea - Candelabra - heeellpp

Postby Saxicola » Wed Dec 12, 2012 10:41 pm

Have you moved it recently (in the last several months)? If it used to be closer to a window and is now further from one the plant will be unhappy. To me it looks like you may have been giving it too much water. An underwatered plant shrivels up, an overwatered one rots (or turns brown and mushy). Can you get a picture of the mildew? If it really is mildew then the soil has been staying too wet. However, it may be salt and mineral residue which isn't usually isn't a problem.

Besides what I said about the window, have there been any other changes to this plant's "routine"?
I'm now selling plants on Ebay. Check it out! My Ebay listings
User avatar
Saxicola
 
Posts: 1541
Joined: Tue Feb 28, 2012 11:31 pm
Location: Los Angeles area, California

Re: Euphorbia Lactea - Candelabra - heeellpp

Postby SueQ0822 » Fri Dec 14, 2012 9:19 pm

I haven't moved it other than rotating it every month or so to allow it even light from the window. The temperatures have cooled off significantly recently here - no snow yet - but it caused our office HVAC unit to go on the fritz and the indoor temperature may have dropped 10 degrees at one point. Should I cut off the brown portion or let it run its course?
The top picture, above the rock shows what may by the salt/mineral residue or mildew... it's chalky and a stark contrast to the bright green of the new growth at the top as seen in the bottom picture. I'm not sure if I should attempt to clean it off, but I don't think that can be the root of the problem at the top of the plant because it's had the white powder since we got the plant 2+ years ago.
SueQ0822
 
Posts: 2
Joined: Wed Dec 12, 2012 8:07 pm

Re: Euphorbia Lactea - Candelabra - heeellpp

Postby Saxicola » Fri Dec 14, 2012 11:18 pm

Darn, I was hoping for some more clear cut "change" in conditions. That would have been easier to figure out. I don't think the temperature drop you mentioned would have affected it. You can go ahead and cut off the sick looking parts if you want. Just know that this plant will "bleed" white latex. It is mildly toxic, but as long as you don't get it in your eyes or mouth don't worry about it. As long as you wash your hands afterward it shouldn't affect your skin.

That is probably only going to be a cosmetic fix. Check and see how stable the plant is in the pot. Basically just rock the stem back and forth a bit and see if it seems well rooted. If it seems pretty stable (particularly if the pot is moving with it) that is a good sign. If it seems really loose, almost like you could lift it right out of the pot like a stick that is bad as it means the roots have rotted.

Check the stems closely (especially near the tips) and look for a very fine and minute spider webbing (you won't see it unless you look very close). If you see some it is likely infested by mites. I don't really think that is the problem, but it is possible.

I've been holding off on the thing you probably won't be happy about doing, but you may need to take it out of its pot and inspect the roots. Try the other stuff first, but the thing above about rocking the plant was a quick test to save you this step, but only if things are so bad the roots have rotted out completely. Otherwise you have to do this. You are looking for healthy roots. I'm assuming you may not be a plant person, so this can be hard to describe, but in short look for nice white or pale yellow roots (mostly near the tips). If all you see are brown and somewhat mushy roots they are dead. While you are at it look for what appears to be a white fluffy fungus on the roots. If you see it you may have root mealybugs. It is an insect, but it looks fungus like unless you look closely (Google it). If you have those let us know because it means you'll need to use pesticides and we can help you with that.

Hopefully other people will have suggestions in case I'm not thinking of something.
I'm now selling plants on Ebay. Check it out! My Ebay listings
User avatar
Saxicola
 
Posts: 1541
Joined: Tue Feb 28, 2012 11:31 pm
Location: Los Angeles area, California


Return to Succulent Growing Help

Who is online

Users browsing this forum: No registered users and 1 guest