Brown spot on the head of my moon cactus
My red moon cactus is getting a dark brown spot on it's head. What should.i do? It is next to three other ones that look ok. Let me know if I should remove the red to protect the other cacti and succulents in terrainum.
Certified GKH Gardening Expert
Once signs of fungus appear on Cactus it may be to late to stop or save them.
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