That doesn’t sound like a bug issue to me, so I’m going to suggest that you’re consistent on the watering (An inch per week, and more if it’s REALLY hot right now in Zone 7) and that you’re fertilizing them with a balanced (10-10-10 or 20-20-20) fertilizer. Don’t over-do it on pure nitrogen as that will give you lots of foliage and less or even no fruit.
There are some cukes that DO produce round fruit - you’re certain of the variety you planted? (Just asking! It happens!) Do you know the variety? That may help me, too. They’re a lot of hybrids out there for cukes, now.
Has your weather been especially hot and dry? If so, the consistent watering and fertilizing should help with better production all the way around.
I’m assuming they’re in full sun? Well draining soil? If it doesn’t drain well, don’t overdo it on the watering, then. If you ARE over-watering and it’s not well drained and you’re not fertilizing, that could be the culprit, too.
Is that complicated enough? LOL! I mean, it’s just a cucumber for Pete’s Sake! They should be pretty easy to grow. I’m just covering all the angles, here. ;)

Yes, it has been quite hot and dry. At least two other things (”cherry tomatoes” and beans) I have planted have not been exactly what I thought I was getting, so it could just be the type. I will make sure to consistently water. Thank you!
I would agree about the water and curled cukes. We experienced that one year. Not enough water.
I can’t get cucumbers to grow worth squat. Maybe it’s the clay soil under everything. That is, I’ll dig a hole and then fill it with garden or potting soil plus the plant. Then water, but try not to over water. The plants may produce a couple small cukes, then they die. The plants don’t look starved for water. There are a couple hickory trees (and were modest size walnut trees) not too far away, but the garden is not “under” those trees - the crowns are at least 30 ft. removed @ closest...