I do not think these are normal or beneficial. Every time these show up on my Okra, it is when the plants are suffering . It's as if they are been sucked on as the leaves start to sag and look floppy. Whenever I have sprayed with neem oil and wiped the egg like substance of the back of the plant, the plants recover. Before I knew what to do, my plants would just shrivel and die. They seem particularly susceptible to this. Perhaps the eggs/beads only show up when the plant is suffering, but then why would they improve with neem application?