When you see these on the undersides of your squash plants…RUUUUUUUUN! ha. No.
These are squash bug eggs. Tear off the portion of leaf that has them then either put it in the trash wrapped up in something so they nymphs can’t get out when they hatch or burn them. I like burning but I do both things. This is how I do it anyway.
Whatever you do, don’t let them hatch if you see them. They suck (literally)