I can only tell for sure what one of them is as the rest are not in focus or are not in a revealing position to ID. The blue and red bug is a sharpshooter leafhopper. This is a harmful insect as it sucks the juices out of a plant and is a vector for disease. I know of no organic remedies except Neem Oil sprayed in early spring before the adults emerge. The other bugs, besides the green grasshopper, are, I think, a psyllid insect and a green shield bug or stinkbug. You can control a psyllid with Neem Oil and the stinkbug with a spinosad based insecticide with direct contact.