I injected BT into my summer squash last year. Plants lasted longer but yields were low.So, since I've not had any trouble so far, prevention is where I'm focusing.
1. Set out SVB traps. Bright yellow with a little soapy water to drown the boogers.
2. Have some BT ready to go. I had to do some study on this. "Bacillus thuringiensis (Bt) is a strain of bacteria that is used to harm squash vine borers and other pests. This can be applied as a spray on the exterior. Injecting Bt directly into a squash plant's vine is the fastest way to control the problem."
3. Wood ash seems to help, but my soil is already on the high ph side.
Here are some intercropping ideas
https://www.hgtv.com/outdoors/flowers-and-plants/vegetables/companion-planting-for-squash
Oh, my word. I haven't got time today for rabbit trails like this!![]()