Light burn? Early signs just began to show

[George]

Upon your description, they must be thrips. Fortunately you’re in veg and they don’t look much damaged. Try to spray them with Spinosad, here you will find useful tips …

Found thrips. What can be done?

I don’t know Someone, but I know spinosad. It has a smell but it is not an odor. It rapidly degrades. Thorough coverage is important but you don’t have to soak your plants for it to be effective. Start at the bottom of the plant spraying upwards towards the undersides of the leaves. Wet the leaves and move on. Once you have worked your way to the top leaves mist the upper surfaces of the leaves on your way back down to the bottom. Get some blue and yellow sticky traps to put in your grow…