What are these tiny black specks on my houseplants?

Question:Most of my plants have many minuscule black organisms on the leaves. They're worm-like, in that they move.

The plants are located on a screened-in porch (the only source of strong sunlight available), so the probability that the pests originated outside is almost a certainty.

Where did they come from? How do I safely get rid of (or control) them? Thanks...

Answers:
Little tiny bugs that are eating your plant. They have a spray that will kill it but I can't remember the name. I get mine at Wal-mart. Try walmart.com and see if you can find it. Sorry.