I would love to hear any suggestions here.
Nasturtiums are known to deter squash bugs and they can be interplanted very nicely between the squash. I keep wanting to try this but nasturtiums don't make it through the summer in our heat.
Another that I haven't tried is Bee Balm; supposedly the smell and oil of bee balm is repulsive to the squash bugs. Next year.
I didn't grow any summer squash this year because of the squash bugs but I'm hoping their life cycle will be over soon and I will plant some winter squash soon, after I harvest the garlic.