How do you catch garitina easier in Pokemon Diamond and Pearl?

You could use quick balls for the first 5 turns, attack to wear it down to the lowest possible and then dusk balls until the battle has gone on for over 40 turns, then use a timer balls until you catch it or run out of balls. Or you could cheat using a masterball from an Action Replay, GameShark, or the one you get in the game. Easy.