I’m in the middle of an outdoor grow in the mid-Atlantic US. 1 of my 4 plants has what you see pictured on a handful of leaves. It doesn’t really look like anything I’ve seen as evidence of common pests but I guess the closest could be spider mites? Maybe something else? Maybe not pest-related.
I’ve already started a regimen of the neem oil-based deBug Turbo because there appears to be some nibbling going on on one of the other plants.
But again, not sure. It’s hot here if that helps narrow down my issues.