hi there, I'm not an outdoor grower normally....

Hi Bro, these holes are made by crichets not grasshoppers. I'm an outdoor grower and a war against grasshoppers/crickets is a lost war. Apart from covering them with a mosquito net you can't do anything else, these bastards don't give a damn about pesticides. Unless your plants encounter a monstrous swarm they should have no survival problems. At my expense, I learned that they eat leaves and not buds. I enjoy hunting with a snap of my fingers, or I catch them because my cat loves them 😋.