Pikmin 3. Garden of hope, how do i destroy the concrete wall?

Stone walls can only be broken by blowing up three bomb rocks on it. Bomb rocks are scattered around, often you'll see mounds of dirt that you can toss pikmin in and they'll dig up the rocks. In Pikmin 3 all types of pikmin can carry them. So grab them and toss the carriers at the wall, they'll drop the bombs to blow it up.

simple, just don't vote for trump