The pilot reported that during landing in the tailwheel equipped airplane, he inadvertently applied left brake and the airplane veered abruptly to the left. Subsequently, the right wing and horizontal stabilizer struck the ground and the airplane came to rest upright. Postaccident examination of the airplane revealed structural damage to the right wing, right horizontal, and right elevator. The pilot reported no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.