Flip them leaves over and look with a magnifier as you have some type of bugs most likely.
Looks like bug bites to me
I think you’re right but I can’t find any. It’s separate plants so must be jumping around. What can I spray with. Any suggestions. What damage will it do?
No more than what I’m seeing it was probably just a passing through grasshopper. I would check them good with a scope and just watch them real good checking for bugs. In other words I wouldn’t spray anything until I identified the problem.
Bugs get some Captain Jacks and spray I use it through the entire grow as precaution. Will not hurt anything.