How do I get rid of grasshoppers?

Every summer around this time I notice small light green grasshoppers jumping around/away when I water my plants (hostas,flowers etc. NOT vegetable or fruit plants). After awhile these grasshoppers get bigger and bigger. Probably because they are eating my plants. How do I get rid of them and keep them from eating my plants? Any advice would be greatly appreciated. Sorry I didn't take any pics.
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