Insect and Spider Identification: What are these dust-like insects?, 0 by subaya

subaya wrote:
I have the same kind of pest, which has afflicted my alstroemeria, 2 kalanchoes, cyclamen, long-leaf jade (mild), maybe serissa, few on leaves of my Meyer lemon, Cape ivy. A couple plants also had cottony deposits on stems at leaf joints, made me think mealy bugs and I treated them with rubbing alcohol (suggested for mealy bugs). Seemed to work, except I overdid it for the Cape ivy. Seems to be some sticky residue on some plants.

Pictures are of latest victim, a kalanchoe. Any info on ID or treatments will be much appreciated!