Never give up. PM and bugs are part of the equation, and there are safe ways to get them to the finish line, that usually always sometimes work. Thrips are a one to two spray thing, with spinosad. They are not a threat to crops, unless mismanaged. PM, is a constant, but with best ventilation and cleaning practices followed, it rarely rears it's ugly head again. I can't really make out anything in the photo, doesn't look bad... keep em green.