Two of my plants have turned brown in spots, Ferocactus setispinus and Chameocereus "Rose quartz". Is this fungus and how can I get rid of it?
Thanks
Karin
Is this fungus or what?
Is this fungus or what?
Life's a Cactus in the Great State of Texas!!!
Re: Is this fungus or what?
I'm suspecting sunburn, not sure though, did you relocate it recently? Or maybe there's a heatwave?
Re: Is this fungus or what?
Not sure about the Ferocactus. Could be sunburn. Looks quite old, or did this just appear? Could be freeze damage if it happened over winter.
On the second one, check for mites.
On the second one, check for mites.
--ian
Re: Is this fungus or what?
The ferocactus looks like it has physical or frost damage the rose quarts likely has spider mites use fungacide 3 which is miteacide insecticide and fungacide