Question cucumber disease

[Yoram]

Hi from Southern California,
first time grower here. cucumber plant got its first cucumbers and the leaves start to look like this.
any idea what that is and how to fix it?
thanks

 

[Silver Egg]

Did you already harvest the first cucumbers? Do you pull them off or cut them off?

 

[Yoram]

harvest the first one yesterday (second photo) and cut all these leaves immediately after that. Also found these bugs in there. any ideas?

 

[Vicky]

I don't know much about cucumber growing but it looks like some kind of mite damage on the leaves, a quick google search said that aphids can be black like the little bugs in your picture but I haven't seen aphid damage like that before. Without prior knowledge (I do plant to plant cucumbers this year though) I'd be inclined to spray a light solution of epsom salts on both sides of the leaves and see if the damage is halted or not, certainly spray the solution on the soil under the plants as some critters lay their eggs in the soil and then hatch, emerge and climb right up your plants!!
Sorry I can't give any definite answers, only vague suggestions

 

[ClissAT]

its damage from a leaf miner beetle that lives inside the leaf.
Its very minor damage that a healthy plant can overcome.
If your plant has been producing well for a while then its time to plant a new one to take over from this one.
Or...Try some white oil or natural water-based insecticide to attempt a fix.