Identifying cause of lesions on cactus
Posted: Mon Aug 15, 2016 9:53 pm
Hi,
I have a Peruvian Torch type cactus approx 10 years old, 4ft tall and 1 to 2 inches wide. It is planted in 100% compost and is rarely watered. I keep it indoors near a large window. It used to be in the window gathering more light, but now it's too tall to fit, so is close by on a table.
I have recently noticed the occurrence of lesions, both black and whitish grey. Including one big black lesion that weeped a black ink-like liquid, but now is dry. These are occuring on the darker side of the cactus (not the window facing side), and within 12 inches of the base. Any ideas on what they are and the cause?
Thank you
Steve
I have a Peruvian Torch type cactus approx 10 years old, 4ft tall and 1 to 2 inches wide. It is planted in 100% compost and is rarely watered. I keep it indoors near a large window. It used to be in the window gathering more light, but now it's too tall to fit, so is close by on a table.
I have recently noticed the occurrence of lesions, both black and whitish grey. Including one big black lesion that weeped a black ink-like liquid, but now is dry. These are occuring on the darker side of the cactus (not the window facing side), and within 12 inches of the base. Any ideas on what they are and the cause?
Thank you
Steve