Thank you! I did google to find images and information on theses plants, but I'm not sure I'm getting the nuances. Could someone please help me with the differenced between Echinocactus and Ferocactus? Espcially when it comes to very young plants; I found the attached images, and I'm not sure what to look for to compare it to mine. Thanks again, and in advance. Jeanne Here is a link that might be useful: Echinocactus seedling

If you touch the white spots with a wooden skewer or something of that sort, do they pull away like cotton? If so, you have mealy bugs. If not, I'd say you have some sort of mold or fungus growth. To take care of mealy bugs, you can wipe them off with a mixture of 50/50 rubbing alcohol and water and a q-tip. You will have to do this every day for a few weeks. Yes, you also need to remove the others from the pot if they are not already infected. That being said, it is hard for me to tell if this 100% mealy bugs or if it is a fungus. So do the skewer test first. - Sam :)

I'm no expert, but I'm surprised no one has asked if there are holes in that pot so it can drain. They'll also ask about your soil, cacti and succulents don't do well in regular potting soil. That's about the extent of my expertise, but others here can help you :)

Maybe Ferocactus emoryi or covillei