Hey there so with the miners like people have mentioned you're doing alright with the spinosad and removing the bad leaves, as miners live inside them. Since you're only at week 4, you could use neem in addition to the spinosad, but definitely retreat the area a few times with your spinosad at least. If you start noticing bite Mark's out of the leaves then you may have other bugs and the spinosad may not work against them, this is why a secondary treatment (neem, predator bugs, or BT is useful)
Best of luck, great job at catching them so early on.