carnegiea spots

Trouble shoot problems you are having with your cactus.
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romesion
Posts: 13
Joined: Sun Aug 14, 2022 8:09 pm
Location: Greece

carnegiea spots

Post by romesion »

Hello to everyone.
I have a problem with a carnegiea. I have it outside in a greenhouse as the rest of my plants for the winter. Recently i noticed these 3 black spots on the top of the plant and on the same side. Is anyone have any idea which is the problem?
Thank you!!!
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Tom in Tucson
Posts: 426
Joined: Sun Jan 02, 2022 4:12 pm
Location: NW Tucson AZ area

Re: carnegiea spots

Post by Tom in Tucson »

I would guess it's sunburn on your 'Saguaro' Pachycereus pringlei
Download
Posts: 251
Joined: Mon Mar 01, 2021 5:22 am
Location: Adelaide, Australia

Re: carnegiea spots

Post by Download »

Spot don't look like sunburn to me (unless it's really bad, the sunburn is normally between the spines along the ridges as the spines provide a small amount of shade), but I agree it's P pringlei.
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