Bees declared to be fish in California

[Catherine]

I just looked up stink bugs and they are not native to North America so they have no natural predators.
You are right, they will eat your squash plants. Some sites suggested spraying them with soapy water.
That usually works for spider mites too. I did see a suggestion of using neem oil. There are commercial neem products. However you can get a small bottle of the oil and mix it yourself as needed. It takes care of a lot of pests, not just stink bugs. 

https://www.thespruce.com/using-neem-oil...de-2132579

I like the fact that it doesn't harm pollinators.

This could be a good gardening year for you, weather permitting.

Squash is pretty much my favorite vegetable. I grew up with Hubbard squash and I love the flavor and texture. I get buttercup squash here and it is really good.
I love pumpkins too. I use them for soup. Your garden sounds delicious.