Viva Pinata: Trouble in Paradise

If you fence off the section of the garden that he goes into - around the Tower of Sour - then he can't get in. Other than that, there is no way.

I you have enough money, give your valuable pinatas halo of hardnesses and prevent the others from getting ill

Buy the Dastardos shovel head in Costolots.

Do you mean Dastardos or Pester?

Dastardos can be slowed down by buying the Dastardos Scarer from Lottie's. It's the statue that looks like Mumbo and that should pretty much keep him out all of the time. At the very worse it will give you a lot of time to get Patch out to heal up the pinata in question.

As for Pester, the wall glitch by the Tower of Sour is a definite tactic. There's also the chance of having a Limeo and/or Dragonache and they should keep chasing him out.

Dastardos gets distracted when he's in ur garden by crowlas and sherbats, then the doctor can get in and heal ur pinata