A buddy who grows was looking at my plants vegging outdoors. On the very top of 2 plants were little balls. One on each plant. I touched one and it exploded. Live baby spiders. Thousands of them. The size of mites but they were actual spiders. He’s freaking. “Aren’t you going to spray those or something?”
Nope. They won’t stay long. You’ll see. Within a week they were nowhere to be seen. Knowing the pests in your area is very helpful in treating or not. Check lots of pics before you get a bug problem.
Also quarantine anything alive you bring home. Including houseplants. I’ve known several who have brought home powdery mildew, thrips, spider mites and broad mites. This is true even of clones bought in a legal store.