[Awen Moonshine]

There a some Pokemon that you can only get when using evolution items. We don't have stones yet other than the sun stone which will evolve a Gloom into a Bellossom or a Sunkern into a SunFlora. The other items are Dragon Scale, Metal Coat, Upgrade and Kings Rock.

Pinap berries make the Pokemon give more candy when caught with one active, Nanab berries calm a Pokemon down to make them move around less and make them easier to catch and Razz berries increase the capture rate, meaning you have a higher chance of capturing the it when that berry is active.

I hope that helps ^_^;; There are also 2 other berries that have also been coded into the game but not yet have a use or are findable yet. I suspect once the new gym system is in place they will have more of a role.