Just one small tomato and one plant that looks like it has some
"buds", many flowers still. My gardening neighbor has many fruits on
his. We have some of the same varieties.

That makes me wonder why, and what I might change.

Here is where we differ. He gets an extra few hours of direct
sunlight. Mine probably get more even watering (drippers) and have
gotten some fish emulsion fertilizer. He has many more pollinators. My
yard is cooler than his, so it's not that the temps are too high
(although that may be on the way!).

I've heard some anecdotal talk that high N and watering can suppress
fruiting. I have seen plants in terrible shape that have lots of fruit,
so it seems that stress helps set fruit. I would think the N would have
more to do with smaller or fewer fruit, not none.

So, I think I should hold off on the Fish Oil and shake the plants,
but should I do anything else?

Cukes are looking good though, and I've got squash on the way. I've
been the go between with the flowers.

Jeff