I did not realize that that you were using nursery plants. Cucumber plants are more fragile than squash plants. Both are tricky to transplant. If you bought them and transplanted them without gradually hardening them off, you probably have sunburn/windburn. Sort of like when you work in an office all winter and then take a day off to hit the beach without sun protection. Alcohol is a drying agent that probably made it worse. If this is the case they may outgrow it.
