Codling moth. Codling moth larvae are an important pest of apple trees and to some extent pear trees. The female adult moth lays eggs on apple fruitlets in late spring, and the resulting larvae burrow into the developing apples. They damage the inside of the apple.
Keep on giving it Haircuts and it'll evolve eventually. Eevee can evolve into an Umbreon at and between the levels 2-99. It needs at least 220 Happiness points but from what you said earlier (trusts you), it means that your very close to reaching that level. Makes sure that you level it up so that it evolves. If you don't level it up, then it won't evolve.
To choose, rather than have Eevee randomly evolve into one of them, you have to rename your Eevee after one of the Eevee brothers from the PokÃ©mon TV show before evolving it. Calling it Pyro spawns a Flareon, while Sparky becomes a Jolteon and Rainer a Vaporeon. Rename Eevee, hit save and then reload the PokÃ©mon Go app just to make sure the name saved. Then evolve the renamed Eevee to net yourself your desired PokÃ©mon. This should work at least once, but your milage may vary.