First time growing Cucumbers....

[sweeps5063]

This is my first time growing cucumbers and well having a garden that consisted of more than just peppers. Today when I was watering my cucumbers I noticed that one of the leaves looks like edges are burning and the other leaf looks like something had drawn loopy lines all over it. I don't know what it is and I was hoping someone might. Any help or advice will help. Thank you in advance
Jessye

[Intriguedbybonsai]

Could it be early signs of downey mildew? Are you treating your plants with a fungicide? https://www.ces.ncsu.edu/chatham/ag/SustAg/downymildew09.html

I was also thinking it could be due to over sun exposure, aphids, leaf miners, or nematodes. You could try a pesticide with neem oil to control pests.

[rainbowgardener]

The loopy lines all over would almost definitely be leafminers. They are a little insect that gets in between the layers of the leaves and burrows around, leaving those trails. Actually they are the larva of any of several different insects that do that. Here's a nice little article about them:

https://www.planetnatural.com/site/xdpy/kb/leafminer-control.html

The burnt edges is something different, most likely some kind of fungal problem.

[sweeps5063]

Thank you very much for all the advice and info, I took off the leaves and disposed of them.