Hey bro
This is thrips, which are attacking your plants, about 3/4 weeks ago I had a lot of problems with this, my grow was getting infested, they reproduce very fast, you need to control it soon.
Here I removed the leaves attacked by thrips, and I use a foliar with garlic extract, in 2/3 applications the thrips disappeared, if you take a look at my diary, you will see what they did to one of my plants, in question of days.
Along with the garlic extract I also use a bio-insecticide, I’ll send you the link to the video so you can take a look.
the garlic extract I’m using, I got this garlic tip from chive producers in Santa Catarina who lost an entire crop because of thrips.