Now I am really bummed out! I noticed black spots on one of my other cacti today, I think it is a Trichocereus hybrid. The spots were softish and oozing a tar like substance. I immediately went to work with the knife and chopped off all the offending areas (their heads)..
And while I was at it I decided to dig them out of the pot and discovered they were all rooted cuttings.. kinda dissapointing, but now I have 4 small ones instead of one large cluster. The surfaces where I cut started turning reddish-brown almost immideately, and this does worry me a little bit.
I've had way too much bad luck with my cacti lately! Maybe I'm not meant to have cacti
NOO! more black spots!
- ThePackrat
- Posts: 78
- Joined: Sun Sep 12, 2010 4:45 am
- Location: Norway
NOO! more black spots!
63°25′49″N 10°23′42″E
Black plauge and other stuff
I mix sulfer (sulpher) dust in my potting soil. It seems to work most of the time.
- Cactus Charlie
- Posts: 38
- Joined: Sun Feb 05, 2012 6:07 pm
- Location: Somerset, England
I have read that this is common in trichocereus when they are over watered and/or watered when its not warm enough. Dont water them for a while, and when you do, try to do it when its warmer. Also, although trichos can take more water than most other cacti, dont completely drown them!
Charlie
Charlie
Never turn your back on a cactus
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- Joined: Fri Jan 14, 2011 9:10 pm
- Location: Sunol, CA
hmm
I've never seen anything like that on my trichos, and some sit out in the rain all winter.
Some other cacti get spots like that, I don't know what causes it though. Astrophytum myriostigma and myrtilocactus seem particularly susceptible. It doesn't seem to particularly hurt the plants, just make them ugly - I've never had one die from it.
Some other cacti get spots like that, I don't know what causes it though. Astrophytum myriostigma and myrtilocactus seem particularly susceptible. It doesn't seem to particularly hurt the plants, just make them ugly - I've never had one die from it.
- Peterthecactusguy
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- Location: Black Canyon City, Arizona