"There's no holes?" Worms would need to make holes to get inside, right? So no holes must mean no worms.

Although, to be fair, Link agricultural knowledge of these sorts of things was...limited. Especially since pears was one of the fruits he hadn't really seen before arriving in this world.

The ghost, meanwhile, gives the Doctor a mournful look - and continues to reach for the pear. Why must you try to deny them their deathly wish, Doctor?