How to identify squash borer eggs and squash bug eggs. Squash borer eggs are generally laid as a single, round, flat, brown egg. They typically lay at the base of the plant, BUT NOT ALWAYS! Check stems, leaves, and blossoms as well. Squash bug eggs are laid in clusters and look more oblong, but they are also tiny and brown in color. These are usually easier to spot becayse they’re in a group. With both types, you can pull them off, squish them, or get a piece of packing tape or duct tape (my fav