You have a relatively short growing season you need to plant when you can and not worry about the bug. Use row covers until the plants start flowering if you wish to avoid the bug for as long as possible.

Are svb bugs in calif?

Yes, though maybe not a lot. I only found one reference that mentioned the SVB wasn't in pacific states, so I decided to look at the California cooperative extension service website and they mentioned the squash vine borer. Which leads me to believe they can be found in California because all of that information should be local.

In my zone5 they say after July 4th, you are home free.

Are we talking about SVB (squash vine borers) or squash bugs?

SVB are grub-like larvae of a very larg moth moth, not bugs. While squash bugs are actually "bugs", members of the leaf-footed bug family.

They two very different problems with very different symptoms and very different solutions.

Dave

Wikipedia on:
Squash vine borer, which mentions wrapping squash stem in foil to foil the bugs.
Squash bug

ATTRA on squash vine borer and squash bug.

Fanfortony's picture of her/his terrific tulle row cover.

thanks weirdtrv, I thought I saw something in this forum that they (svb) wasn't in Calif, so I wasn't sure. I felt bad that some of the gardeners had to go though the damage they did. I guess I will have to check for them now too :/