Thanks for your help, and sorry my first post doesn't show more. I'll take some photos tomorrow when the lighting in the room is better. Plantladylin--I wish I would have included that. I have already made that same mixture at the start of the week and doused the palm and the yucca making sure to get into the crevices. I apologize--spineless yucca it is! On this site, it's listed as a Dracena - Yucca. (can't post a link, but it's on "groundworksbvi" and shows "dracena") I'm not entirely sure about its name, but Walmart sells them every year and I bought it in remembrance of a relative who had one. Never quite sure if it's a dracena or a yucca. The palm should be a Delray Plants Live Majesty Palm Plant. Had it at our wedding and my in-laws have had one for twenty years without problems.
I also know that my Mexican cucumber (sour gherkin) can stand colder temperatures, so I figured I'd bring it in, trim it back and see how long it would live as an experiment. I'm surprised it's still alive! The leaves keep dying off one by one from this white stuff, which I think is eating the leaves. It falls off almost like dandruff. The yucca was very close to it, and I'm wondering if the white things, which do move, somehow infested the cucumber as well. I'm not sure if they can fly or not, but I have seen a few flies on the undersides of leaves occasionally, not very often though. Wondering if a Listerine mix might help? Again, I appreciate the suggestions, and I'll post pictures tomorrow to help identify the causes.
