It seems I left out some very important "boons"... getting the upper hand on two very destructive insects.
SVB - my initial attempts to destroy eggs as they were laid was not as successful as I had hoped. The moths just kept coming and coming - far longer than usual - and despite my best efforts, all plants eventually became infected. The moths were so late that even some of the
squash were infected. A few vines began to wilt in the sun, and the frass visible at the bases showed that damage was becoming severe. But I tried using a portable water pick to flush out the larvae & open their burrows, and it worked. Some larvae were flushed out; for those that remained, I sprayed Neem oil into the now-open holes. I probably missed a few that were inaccessible from above, but enough larvae were killed to save the vines.
Japanese beetles - tried using traps, and one brand (Bonide) worked exceptionally well. I was emptying the bags at least every other day, into a bucket of soapy water. Last year, the beetles were swarming on my pole beans; I was spraying 20-30 a day with my insecticidal soap mixture. This year, the pole beans on one end were hardly touched, and the beetles were scarce throughout the garden. The flowering mallow that I allow to grow on the edges of the garden proved to be a good trap crop, and intercepted most of the beetles which got through. Only late in the season, as the scent lure began to weaken, did a few more beetles appear - and only on the Fortex. They don't seem to have a taste for yardlong beans, limas, or runner beans (except for runner bean flowers).
Cucumber beetles & squash bugs were no-shows this year... heart breaking, but I've gotten over it.