There are a few changes to growing berries, however. First off, on the odd occassion, weeds will grow around the berries. This will hinder the growth of the berries and result in a less bountiful crop. In addition to that, various Bug-type Pokémon such as Spewpa will end up attacking your plants, and you need to battle them in order to protect your berries.
Here is a list of all Pokemons that try to eat/attack your berries -
Ledyba -> Red Berry Trees
Volbeat -> Blue Berry Trees
Illumise -> Purple Berry Trees
Burmy -> Green Berry Trees
Combee -> Yellow Berry Trees
Spewpa -> Pink Berry Trees
Source - Serebii
Hope this helps
