Brought some of these diseased plants to a specialty nursery. Guy told me spiders caused these growths and lesions. HELP. What is this. I've Googled and could not find anything similar. I live in Los Angeles, CA.
It is aloe mites. I would bag them all up carefully and dispose of them so they do not spread.
I have heard people talking about using a mite systemic on them but yours are so far gone, best to get rid of them ASAP so it does not spread.
This article talks about cutting out the infected parts.