I sure would be spraying those squash plants with Neem. I use the Neem on my squash to control/stop the powdery mildew and to kill any eggs laid from Squash vine Borers. Should work on squash bugs also.
I have read that if you soak the base of the plant really well that the squash bugs will all crawl up trying to escape the water and one can pick them to drop on a can of soapy water to drown.
