What route can berry trees be found on in-battle?

Question

According to Serrebii, there are berry trees that hide wild Pokémon.

Comments

Are you talking about finding Pokemon in Berry trees, or are you talking about destroying background trees in battle to find Berries afterward?  Your question is incredibly unclear.

Answer 1

You plant them yourself with the berries you obtain in the game. The fields are found on Route 6 down a road before the bridge that Snorlax was on. They only have a chance to have Wild Pokemon though.