Squash bees actively gather pollen and nectar from dawn through mid-morning, emerging from their ground nests to forage in the squash patch. Their biology is fascinating, but that's another post -- I need to go transplant basil seedlings before it (hopefully) rains!Squash vine borer damage -- ugh -- it's tough to organically manage. Careful rotations and deep cultivation that disrupt the moth-egg-larvae life cycle seem like the main defense.
Bt injections, wrapping the vines with foil or plastic (ugly), row covers (then you have to hand-pollinate), wiping the base of the vines manually (!), covering the base of the stems with soil : these are all other potential organic controls. The Bt injections sound the most effective, but a bit time-consuming. (CEN in a recent comment says she's so far had success with it).