Head to Park(day) in Florio Nature Park. At the start of the tour, you can use will find a small pile of Charred /Scorching apples on the ground next to a tree, on your right side.
To take a photo of this in action, throw Fluffruit on the Pile by pressing ‘B’. An Emolga will fly down next to it. Now, wait for Emolga to Zap the fruit. You need to take a photograph of this interaction and then complete the rest of the tour.