Those are the nymph stage of the squash bug. Not the vine borer but just called a squash bug. They mature a bit and look a little like the stink bugs. They have a sharp mouthpiece and suck the juice out of the squash leaves, eat them a little too, and inject some kind of a "poison" that kills off the leaf. Supposedly there is only 1 generation per year. You are supposed to make sure you clean up/burn all left over garden residue as they overwinter in mulch and plant waste. I have found the best thing for the garden is to let the chickens have the run of it in the fall/winter and they will scratch up and eat most all the bugs/larvae etc.. I think that scraping the eggs into a cup of water with some dish soap will take care of them...might be able to shake the leaf into a large bucket of soapy water... don't know about any poisons.